Built-in image generation
Original synthetic concept illustration, not a controlled physical experiment

Use case: scientific-educational
Asset type: original wide photographic-style comparison illustration for a Clout negative-fill filmmaking guide
Primary request: Create one landscape 16:9 image divided into two equal photographic panels by a narrow clean vertical gutter, showing the SAME original fictional adult male ceramic artist, same face and pose, plain oatmeal linen overshirt, upper body at a worktable in a modest pale plaster studio. A large soft daylight window is out of frame on camera-left in BOTH panels, so the left side of his face is the key side in both. He looks gently toward the camera, hands calmly resting around a plain clay bowl. Keep lens framing, head position, visible room, exposure on the key side and the neutral daylight look similar between panels. LEFT panel: a pale wall or white bounce surface out of frame on camera-right returns soft ambient fill, giving the right side of his face a relatively open shadow. RIGHT panel: show a narrow edge of a large matte black fabric flag at the extreme right frame edge, near the subject on his shadow side, reducing reflected fill so the right side of the face has visibly deeper but still readable shadow. Preserve the direction of the window key and keep the left cheek comparably lit. The point is controlled-looking shadow-side contrast, NOT a global dark filter, NOT moving the key, NOT a different time of day. Natural human skin and fabric texture; an inviting editorial demonstration rather than an exaggerated horror look. No crew, no celebrity likeness, no labels, no numbers, no text, no logos, no watermarks. This is a synthetic concept illustration, not a photographed or photometrically controlled experiment.