Butterfly Wing Sketch - Simple Line Art Illustration #1472079 (License: Personal Use)

This black-and-white illustration captures the delicate structure of a butterfly wing using bold, freehand lines. The upper wing displays a large eye spot and smooth contours, while the lower wing features three smaller circular markings and a tapered edge. The sketch evokes both scientific accuracy and artistic simplicity, suitable for educational or decorative use.

Used in biology education materials, nature-themed websites, coloring pages, or as a vector base for graphic design; matches user intent for free illustrations, insect anatomy visuals, or minimalist art assets.