Style: bold cel-shaded 1980s disco cartoon, thick black outlines matching the base, flat fills, one hard shadow tone, crisp white glossy highlights.

Pose: three-quarter-right, chin up, body turned to her left, long angled neck, raised bare shoulder at lower right; draw every item in this perspective. Draw 12 clearly different neck variants covering the request: chunky gold curb chains, rope chains, Cuban links, big round medallions (sunburst, disco ball, zodiac, lion, peace sign, initial coin), layered 2-3 strand beaded necklaces (gold, pearl, coloured glass, wood), and mixed chain plus medallion stacks.

Use gold, pearl, enamel and glass colours, never her skin tone, and keep them distinct from her gold hoop earrings.

Placement: the necklace wraps the neck, its two upper ends meeting the neck outlines at x=410 (left) and x=625 (right) just above the neck base at y≈900, then disappearing behind the neck. It hangs down onto the upper chest within x=335..845 and y=760..1024. The raised shoulder outline runs roughly from (520,1024) up to (625,840): the right side of the necklace must stop at that outline and pass behind the shoulder, so never paint over the shoulder.

The lowest point of the drape and any medallion sits in x≈400..520, y≈930..1015. Draw no back strand, nothing across the chin or jaw (chin y=760), and nothing over the afro or the earrings.

Only the item: no skin, no clothing, no collar.

Outputs: artifacts/neck_01.png .. artifacts/neck_12.png, plus artifacts/neck.json as an array of {"file","name","weight"} with weights summing to 100. Plain chains are common (weight about 12-14), large medallions and layered stacks are rarer (weight about 4-6). Write artifacts/neck_01.png .. artifacts/neck_12.png and artifacts/neck.json: an array of {"file","name","weight"} with weights summing to 100, rarer lower.