rule 34 2021 3 heads ambiguous gender artist logo black claws blue body blue horn blue wings claws color swatch dated dragon feral forked tail forked tongue full length portrait glistening glistening eyes gradient horn grey background grey horn hi res horn logo membrane anatomy membranous wings multi head narrowed eyes orange eyes portrait pupils quadruped red inner ear red sclera red tongue riorix scales scalie sharp teeth simple background slit pupils solo spread wings standing tail teeth tongue tongue out unusual anatomy unusual tail vein veiny muscles veiny tail white body white scales wings 7249556