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Grayscale pencil sketch of a geometrically warped, surreal corridor with a black door at the end.

Grayscale pencil sketch of a geometrically warped, surreal corridor with a black door at the end.

**MASTER PROMPT** Create a **single** grayscale pencil sketch illustration for a psychological horror novel chapter header. DO NOT create a collage, storyboard, contact sheet, grid, numbered sequence, or multiple images. Generate ONLY ONE IMAGE. STYLE: * rough graphite pencil sketch * hand-drawn look * unfinished construction-line aesthetic * warped geometric perspective * subtle surreal architectural distortion * monochrome only * grayscale only * NO color whatsoever * NO warm tones * NO sepia * NO blue tint * NO painterly rendering * NO digital painting look * NO photorealism BACKGROUND: * pure white background (#FFFFFF) OR fully transparent background * absolutely no gray vignette * no paper texture * no shadows around the image * no gradient * no frame * no border * edges of the sketch should softly fade naturally into the white page using faint pencil loss, not blur effects COMPOSITION: * ultra wide cinematic composition * chapter header aspect ratio * corridor centered * low eye-level perspective * corridor stretches into distance * impossible angular architecture * warped walls and ceiling planes * geometric distortion inspired by impossible spaces * empty hallway * no people * no text * no symbols * no objects besides the corridor and door THE DOOR: * single black door at the end of the corridor * one door only * never double doors * matte black or charcoal graphite appearance * small silver handle * interior behind door is pure black void PROGRESSION RULES: This Ver más