Koi carp swimming upward through curling waves, drawn as black outline art on white for use as a tattoo stencil. The fish has a scaled body, flowing fins and tail with fine ray lines and two long whiskers, with swirling wave crests and small bubbles around its tail. Swap the fish, the water or the line weight, or colour the scales and fins in your own palette, to make your own design.

A tattoo stencil of a single koi carp swimming upward, drawn as flat line art in clean black outlines on a pure white background. The koi is seen from slightly above, with its body in a graceful vertical S-curve. The head is at the top, mouth open, with two long flowing barbels, a bold round eye and gill plate lines. The tail rises from the bottom in a wide flowing fan. The body fills about 85% of the canvas height and is centred, with a generous white margin on every side. Large overlapping scales are drawn as closed rounded outlines in neat rows down the body. The pectoral and dorsal fins have long, ribbon-like, flowing rays drawn as open paired lines that join at the fin edges. The tail has long, wavy, translucent-looking lobes outlined with a few flowing interior lines. Around the lower body, a few stylised Japanese wave swirls and two or three curled water ripples frame the movement and lead the eye upward. Every line is a uniform, medium-bold, even-weight black stroke, with rounded ends and all shapes fully closed, continuous and uncluttered. The spaces between lines are wide enough to survive as a tattoo. There is no shading, no hatching, no grey, no gradient, no fills, no solid black areas and no texture, so the artist can add shading later. The result is flat, centred artwork like a printed thermal transfer stencil. No text, no skin, no body parts, no mockup and no background elements.