Illustration method & exact prompts ＋
Artwork generated with the built-in image generator, then placed into this diagram. Anatomy and coloration are illustrative. The prompts are reproduced for transparency.
Main-lineage artwork
Use case: scientific-educational.
Asset type: museum-quality natural-history raster specimen atlas used as a CSS sprite sheet in a branching evolution timeline. This is a square 2048 x 2048 image or larger.
Critical geometry: EXACTLY 4 columns by 4 rows, all 16 tiles equal SQUARES, a regular edge-to-edge grid. Tile boundaries occur at x=0%,25%,50%,75%,100% and y=0%,25%,50%,75%,100%. NO gutters, NO margins around overall image, NO visible grid lines. Every specimen/group is separately centered at the center of its own tile and entirely inside the middle 76% of that tile, leaving at least 12% empty padding on each tile side. No specimen, appendage, shadow, branch, tail or other object crosses any tile boundary. Keep generous empty background around every object. Full bodies, including tails, feet, antennae and fins. There is no relationship of scale between the tiles: resize each specimen to fit its own tile.
Background: absolutely flat uniform deep navy #0b1924 throughout the entire atlas, no vignette, no gradient, no horizon or habitat scene.
Style: highly detailed scientifically informed natural-history reconstructions, realistic anatomy, meticulous recognizable silhouettes, vivid but believable organic colors, exquisite fine textures and realistic dimensional shading, softly lit like a museum illustration plate. Polished professional paleoart. No cartoon icon style. Reconstructions are illustrative representatives, not claims of exact ancestors.
Text: NONE. No labels, numbers, letters, captions, logo, watermark, borders, arrows, connectors, frame or decorative elements.
Tile ordering is exact ROW-MAJOR left to right, then top to bottom. Render precisely the following subjects in their specified tiles. Each listed numbered item is a tile, not a label.
ROW 1:
1 (top left, center 12.5%,12.5%): one tiny simple microbial LUCA cell, roundish, membrane with subtle internal chemistry visible, prokaryotic and NO nucleus, no invented organelles.
2 (center 37.5%,12.5%): early eukaryotic cell translucent cutaway, distinct nucleus and several mitochondria, believable fine internal structures.
3 (center 62.5%,12.5%): tiny simple early multicellular marine animal reconstructed as a small hollow rounded colony, simple porous ball of cells, NO jellyfish anatomy, no tentacles.
4 (center 87.5%,12.5%): small flat soft bilateral worm, clearly differentiated head and tail, elongated flattened body and NO limbs.
ROW 2:
5 (center 12.5%,37.5%): translucent lancelet-like Cambrian chordate, Pikaia representative, narrow swimming body with visible repeated muscle segments and subtle fin fold, no limbs, no jaw.
6 (center 37.5%,37.5%): Devonian lobe-finned fish Eusthenopteron-like, clear side view of complete scaly aquatic fish with FOUR fleshy paired fins, typical fish tail, NOT a tetrapod.
7 (center 62.5%,37.5%): Devonian early tetrapod Acanthostega-like, four-limbed flat-headed tailed water dweller, short splayed digit-bearing limbs, elongated body and finned tail, not dinosaur or crocodile.
8 (center 87.5%,37.5%): tiny Carboniferous early amniote, lizardlike slender quadruped with long tapering tail, no spines.
ROW 3:
9 (center 12.5%,62.5%): Permian therapsid/cynodont like Thrinaxodon, squat reptile-mammal transitional quadruped, low robust body, four splayed legs, distinctive rounded snout, subtle sparse protofur, no tusks or frill.
10 (center 37.5%,62.5%): small Jurassic Morganucodon-like furry long-tailed insectivorous mammaliaform, four legs and pointed shrewlike nose, full tail visible.
11 (center 62.5%,62.5%): Eocene early primate like Notharctus, grasping a SHORT isolated branch entirely contained in its tile, lemurlike face and long curved tail, all limbs visible.
12 (center 87.5%,62.5%): Miocene early ape Proconsul-like, TAILLESS arboreal quadruped with four complete limbs, medium brown fur, on small branch confined to tile.
ROW 4:
13 (center 12.5%,87.5%): early hominin Ardipithecus-like ape, grasping feet and mixed climbing/upright anatomy, short upright semi-bipedal stance, full body with no tail, dark fur.
14 (center 37.5%,87.5%): Australopithecus afarensis, fully visible bipedal walking hominin, dark-haired body, slightly long arms, small cranium, no tail.
15 (center 62.5%,87.5%): early Homo, Homo habilis representative standing upright, holding a small primitive stone, dark skin and sparse dark body hair, humanlike foot, complete body, no tail. Natural educational anatomical reconstruction, non-sexual, anatomically unobtrusive pose.
16 (bottom right, center 87.5%,87.5%): modern Homo sapiens adult fully visible, walking naturally, simple neutral contemporary shirt, pants and shoes, complete head-to-toe body, no accessories.
Reminder: exact regular 4x4 equal-square atlas geometry, uniform #0b1924, no text, all specimens centered with 12% padding.
Side-branch artwork
Use case: scientific-educational.
Asset type: museum-quality natural-history raster specimen atlas used as a CSS sprite sheet in a branching evolution timeline. This is a square 2048 x 2048 image or larger.
Critical geometry: EXACTLY 4 columns by 4 rows, all 16 tiles equal SQUARES, a regular edge-to-edge grid. Tile boundaries occur at x=0%,25%,50%,75%,100% and y=0%,25%,50%,75%,100%. NO gutters, NO margins around overall image, NO visible grid lines. Every specimen/group is separately centered at the center of its own tile and entirely inside the middle 76% of that tile, leaving at least 12% empty padding on each tile side. No specimen, appendage, shadow, branch, tail or other object crosses any tile boundary. Keep generous empty background around every object. Full bodies, including tails, feet, antennae and fins. There is no relationship of scale between the tiles: resize each specimen to fit its own tile.
Background: absolutely flat uniform deep navy #0b1924 throughout the entire atlas, no vignette, no gradient, no horizon or habitat scene.
Style: highly detailed scientifically informed natural-history reconstructions, realistic anatomy, meticulous recognizable silhouettes, vivid but believable organic colors, exquisite fine textures and realistic dimensional shading, softly lit like a museum illustration plate. Polished professional paleoart. No cartoon icon style. Reconstructions are illustrative representatives, not claims of exact ancestors.
Text: NONE. No labels, numbers, letters, captions, logo, watermark, borders, arrows, connectors, frame or decorative elements.
Tile ordering is exact ROW-MAJOR left to right, then top to bottom. Render precisely the following subjects in their specified tiles. Each listed numbered item is a tile, not a label.
ROW 1:
1 (top left, center 12.5%,12.5%): microscopic cluster of rod and coccus bacteria, orange and cyan subtle translucency, no nucleus.
2 (center 37.5%,12.5%): microscopic archaeal cells, visually distinct purple/teal simple cells, no nucleus.
3 (center 62.5%,12.5%): elegant small cluster of complete mushrooms representing fungus, caps and stems visible, subtly realistic gills, earthy ochre.
4 (center 87.5%,12.5%): one leafy fern land plant, detailed unfurling fronds, recognizable green fern foliage, complete small plant.
ROW 2:
5 (center 12.5%,37.5%): sea sponge AND jellyfish together as two separate complete marine specimens, sponge at lower left, translucent jellyfish at upper right, complete trailing tentacles, both entirely contained in same tile.
6 (center 37.5%,37.5%): beetle AND spiral snail together as two separate complete specimens, intricate beetle with six legs at upper left, shell-bearing snail lower right.
7 (center 62.5%,37.5%): one complete orange-red five-armed starfish, subtle tubercle texture, centered.
8 (center 87.5%,37.5%): one complete shark in side-view, streamline blue-gray body, all fins and tail visible.
ROW 3:
9 (center 12.5%,62.5%): ray-finned bony fish, complete side-view orange reef fish, detailed scales and delicate spiny fins.
10 (center 37.5%,62.5%): one green and brown frog amphibian, three-quarter view seated with all four limbs, scientifically realistic.
11 (center 62.5%,62.5%): small lizard AND feathered bird together as two separate complete specimens, green lizard at lower left, perching ochre-brown bird at upper right, both with all tails/limbs visible and no overlap.
12 (center 87.5%,62.5%): one complete platypus monotreme, ducklike bill, webbed feet, broad flat tail, deep brown fur, low three-quarter pose.
ROW 4:
13 (center 12.5%,87.5%): one small kangaroo marsupial, complete body with strong hindlegs, short forelimbs and long tail, natural light brown fur.
14 (center 37.5%,87.5%): elephant PLUS a small rodent representing other placentals, two separate complete figures, gray elephant with full trunk, tusks and legs, small brown mouse nearby clearly visible, both fully inside tile.
15 (center 62.5%,87.5%): one monkey with long tail, full body in natural quadrupedal pose, detailed brown fur and expressive primate face.
16 (bottom right, center 87.5%,87.5%): chimpanzee AND bonobo together as two separate complete figures, chimp on left robust and stocky, bonobo on right slender with parted head hair, each recognizable tailless ape with dark fur and full limbs, both figures in natural standing/knucklewalking poses and entirely inside tile.
Reminder: exact regular 4x4 equal-square atlas geometry, uniform #0b1924, no text, all specimens centered with 12% padding.