butterfly wing 3d model

**Only a pair of butterfly wings, disconnected from body**, highly detailed **biomimicry wing venation network** serving as structural support, the entire wing surface has a **distinct, smooth 3D curved and pre-bent shape** (concave for lift), accurately mimicking the **natural outline and contours of a Monarch butterfly's spread wings**, rigid frame with **minimalist ribs to maintain the non-planar curvature**, ultra-lightweight, **optimized for skinning with film to hold the fixed curve**, carbon-fiber aesthetic, clean STL manifold model.