Rule 34 Dev - ambiguous_gender duo ear_fins eyebrows eyelashes feral fin lore pseudo_hair pseudo_mane simple_background snout species_sheet tail tail_fin white_background ed_mortis fluffy_pony fluffy_pony_(species) mammal marine seafluff 2024 graphite_(artwork) greyscale hi_res monochrome sketch traditional_media_(artwork) watermark|21807441145