Rule 34 Dev - 1girl 2010s 2016 2d 2d_(artwork) abs anthro anthro_only artist_name artist_watermark athletic athletic_female black_tank_top blue_body blue_skin breasts deviantart digital_media_(artwork) ear_fins eyepatch female_abs female_anthro female_only fins fish fish_girl grin hair head_fins long_hair looking_at_viewer marine midriff monster monster_girl muscle muscular muscular_anthro muscular_female non-mammal_breasts ponytail red_hair red_ponytail reef1600 sharp_teeth simple_background slit_pupils smirk smirking_at_viewer solid_color_background solo_anthro solo_female tank_top teeth undertale undertale_(series) undyne upper_body video_game_character video_games watermark yellow_sclera yellow_teeth|1060660