Dichotomous_key.psd: Sketch style, digital illustration, dichotomous key layout, Photosynthetic sun-basking sharks, emerald green fins with visible chlorophyll strands, basking lazily near surface, Chemosynthetic goldfish, glowing orange scales, consuming iridescent pollution, slender Aquatic humanoids, streamlined fins, gracefully swimming, feasting on aqua-wheat and basking sharks, Aqua-wheat, luminous algae, swaying gently in current, four-armed Terrestrial Humanoids, lumbering across barren land, hunting butter-roaches and fuzzy hamsters, Tentacled aqua humanoids, graceful tentacles, gathering aqua-wheat, parasitic Cockroaches, chitinous exoskeletons, lurking near humanoid waste, enormous Aqua-spiders, spindly legs, preying on goldfish and basking sharks, Green-haired rats, clustered near sunlight, photosynthetic fur, Parasitic mosquitoes, darting near humanoids, drinking blood, ten-legged Fleas, clinging to rats, gorging on blood, Poison Grass, crosshatched textures, hybrid of grass and poison ivy, Fuzzy hamsters, photosynthetic green tufts of hair, basking under light, Butter-roaches, large butterfly-like wings, consuming poison grass, contrasting black lines, white fill, hatching for shading, visual impact, emotional expression, graphic design aesthetics, scientific illustration influences, sterile background, sparse details, clean linework, uniform thickness, clear distinctions between organisms, dichotomous key format, numbered entries, simplified diagrams, barren landscape, dark aquatic environment | Sketch