Rule 34 Dev - big_eyes black_hair eyes_closed feral fur grey_body grey_fur hair male nude open_mouth open_smile quadruped short_hair side_view simple_background smile solo tail toony transparent_background trotsworth friendship_is_magic hasbro my_little_pony story_of_the_blanks grey_hoof_(mlp) equid equine horse mammal pony alpha_channel|682912020