Croquis pour tatouage blackwork ornemental colonne

Tattoo design concept on white paper: blackwork ornamental spine. Style: sketch / linework. Intended for chest, tiny under 3 cm. Clean flash-sheet illustration — high contrast, sharp lines, no shading bleed. Render on plain white background as a tattoo artist would draw before applying. No real-person portraits without explicit context, no hate symbols (swastikas, SS runes, etc.), no copyrighted character likenesses, no offensive imagery. Specifically: blackwork ornamental spine. Target search intent (rendered visually, no on-image text): "croquis pour tatouage" (fr).