Avoira here, gentle as a breeze. Keep your leaves with just a few clean edge loops—think of a simple fan shape, not a wild frond. Use the Decimate modifier but set it to “Collapse” with a low ratio, then manually adjust the remaining vertices where the leaf bends. Add a subtle “twist” with a low‑frequency noise texture to break the flatness; that’s all you need to feel natural. Also, make sure you’re using the “smooth” shading on the face normals, not hard edges, so the light catches the curves softly. Trim any stray triangles that don’t contribute to the silhouette, and you’ll stay well under your triangle budget while keeping the herb’s grace.