The Big ImageBoard (TBIB) - 2016 amazon milk frog ambiguous gender amphibian anthro binturongboy biped black markings black skin black stripes blue tongue blush digital drawing (artwork) digital media (artwork) eye markings facial markings fingerless (marking) flustered flying sweatdrops frog grey background grey skin half-length portrait hands together markings mask (marking) multicolored skin nervous nude open mouth orange eyes portrait reaction image semi-anthro shy simple background spots spotted skin striped skin stripes sweat sweatdrop tree frog unusual pupils white skin white spots