A rugged subterranean cavern wall teeming with organic growth. Subterranean rock surfaces transition from dry, barren stone into damp, biofilm-covered terrain drenched in condensation. Composition: medium shot, slightly low angle looking upward into the expansive cavern chamber, featuring A low-angle, expansive geological cutaway that draws the viewer's eye from the barren upper rock layers down into the moist, living floor of the cavern. Scientific details: Realistic karst topography with jagged limestone fissures, weeping water droplets on mineral surfaces, and subtle iridescent sheens on wet biofilms indicating active bacterial colonies. Color palette: Deep charcoal, Warm amber, Ochre, Muted olive green. The complete visual composition must sit comfortably inside the canvas with generous clean white/off-white negative space visible on all four sides: left, right, top, and bottom (target 8-12% margins, minimum 6%). The main illustration must occupy maximum 80% canvas height and 84% canvas width. Never stretch vertical geological columns, shafts, planetary spheres, magma conduits, or tall objects to touch the top or bottom boundaries; scale the entire illustration down inside the safe central canvas. Keep all important elements fully inside the safe frame. Nothing may touch or cross any canvas edge. Do not crop the primary subject. Do not use edge-to-edge artwork. Do not fill the entire frame with background scenery. hand-drawn 2D explainer cartoon illustration, thick clean black outlines, simplified readable forms, flat cel-style colors, soft minimal shading, clean educational YouTube illustration, clear focal hierarchy, no photorealism, no 3D rendering, no typography, no text, no watermarks
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