A stagnant underground cavern chamber filled with heavy, swirling pockets of dense vapor. Gases hang heavy and unmoving in the absolute darkness, pooling thickly over the rough cave floor and stalagmites. Composition: close-up, low angle, looking slightly upward across the gas-pooled floor toward rugged limestone formations., featuring A low-angle, claustrophobic framing emphasizing the oppressive weight of the cave ceiling and the thick floor vapors. Scientific details: Jagged gypsum and calcite crystals lining the walls, heavy condensation dripping from the ceiling, thick atmospheric density represented by rolling vapor textures. Color palette: Pitch black, Deep charcoal gray, Muted sulfur yellow, Damp limestone ochre. 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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