Rule 34 Dev - anthro areola avian beak big_breasts bird blue_areola blue_body blue_eyes blue_feathers blue_hair blue_nipples blush breasts detailed_background digital_drawing_(artwork) digital_media_(artwork) english_text eyelashes feathered_wings feathers female hair hi_res huge_breasts long_hair looking_at_viewer martlet_(undertale_yellow) monster navel neck_tuft nipples nude outdoor_nudity outside plant portrait presenting presenting_breasts shaded simple_background sky smile snow snowflake snowing solo text tree tuft undertale undertale_(series) undertale_yellow vazilior wide_hips winged_arms wings yellow_beak|13024745912