forest sprite face as a flat pale mask made from white poplar leaf undersides, silvery-white waxy leaf texture covering entire face, no human facial structure, flat mask-like face, large dark pupils with no eye whites, full amber-gold iris filling most of the eye, wolf eyes but inhuman, nettle thorn eyelashes white and fine, bramble thorn teeth just visible at closed lips, surrounded by layered poplar leaves, deep forest shadow background, golden light from above, painterly botanical horror illustration, muted silver-green and amber palette