Rule 34 Dev - abs anthro beak biceps feathers fist flexing looking_at_viewer male muscular muscular_anthro muscular_male nude pecs pose raised_arm raised_fist raised_hand simple_background solo white_background yellow_body yellow_feathers gweek avian bird canary finch oscine passerine digital_media_(artwork) digital_painting_(artwork) half-length_portrait painting_(artwork) portrait|1349439770