Canvas 1024x1024 RGBA PNG, transparent except the garment. Match the base exactly: thick dark-brown outlines, flat cel shading, and the same light from the upper left. The pose is a three-quarter view turned to the viewer's LEFT (NOT straight on), framed head and shoulders, with the shoulders running off the bottom edge. Draw each garment in that turn: the front placket and centre seam sit left of centre at about x=450, the viewer's-right side of the torso shows more fabric, and the viewer's-left shoulder is foreshortened.

Draw 12 'gangster monkey' jumpers worn on the attached gorilla base. Make them clearly different in shape, material and colour:

• pullover hoodies with the hood DOWN, lying behind the neck and shoulders, with drawstrings
• zip hoodies
• chunky cable-knit crewnecks
• a varsity-style knit
• a baggy oversized sweatshirt
• a fleece
• a bandana-print knit
• a dark luxe knit with a gold chain over it

Palette: black, charcoal, navy, deep red, olive, cream, plus one rare gold-trimmed piece. Colours come from fabric and knit, never the monkey's brown fur or tan skin.

Placement:

• The collar and neckband wrap around the thick neck just under the chin fur. The front edge of the collar dips to about y=715 at x=450. The collar rises to about y=680 at the back-right (x≈620) and about y=700 on the left (x≈360).
• Leave the neck opening transparent where the base's furry neck shows above the collar front (about x=390..610, y=688..715), so the real neck goes into the garment.
• Never draw the inside, lining or back wall of the neck hole, and never fill it with fabric.
• The garment runs to the bottom edge y=1024 and spans x=26..1011, covering both massive shoulders and the chest fully and opaquely so no fur shows on the torso.
• Nothing goes above y=675, and nothing covers the chin, muzzle or ears.
• A hood that is down may rise to about y=660 behind the neck on the viewer's right only, and it must sit behind the head silhouette.

Only the garment pixels; everything else fully transparent.

Outputs: artifacts/jumper_01.png .. artifacts/jumper_12.png, plus artifacts/jumper.json, an array of {"file","name","weight"} with weights summing to 100 (common plain hoodies higher, the gold-chain luxe knit rarest). Write artifacts/jumper_01.png .. artifacts/jumper_12.png and artifacts/jumper.json: an array of {"file","name","weight"} with weights summing to 100, rarer lower.