The Big ImageBoard (TBIB) - 2019 action pose alpha channel ambiguous gender anthro arthropod black body black exoskeleton cape cape only clothing empty eyes exoskeleton featureless crotch featureless feet front view full-length portrait glowing glowing eyes grainy grimm (hollow knight) hi res insect jumping long mouth male (lore) mostly nude outstretched arm portrait pose raised leg red body red exoskeleton red eyes red glow segmented body simple background skinny solo transparent background umbreeunix