Two-color risograph poster featuring two anatomically accurate human skulls arranged in a tight interlocking composition. The larger upper skull is shown in three-quarter side view facing right with its jaw open downward; the second skull is rotated upside down beneath it, facing left with its jaw open upward, so their teeth and jawlines overlap near the center. Print the skulls entirely in dense matte-black ink on intensely saturated fluorescent scarlet-red paper. Build all anatomical detail from crushed black shadows, coarse stochastic grain, photocopier toner, scattered dots and eroded ink rather than clean outlines. Let the red paper show through as the highlights and empty areas inside the skulls. Use rough speckled edges, inconsistent ink density, dusty overspray and subtle misregistration to create a raw analog photocopy and risograph texture. Keep the skull cluster centered with generous untouched red negative space around it. Aggressive underground poster aesthetic, high contrast, imperfect and tactile. No white ink, no gray, no typography, no border, no additional objects, no gore, no smooth gradients, no polished vector lines, no glossy 3D rendering.