Rule 34 Dev - 2022 blonde_hair blue_eyes crotchboobs digital_media_(artwork) equid equine female feral gayle_(gayletrotter) gayletrotter hair hooves horse looking_back looking_down machine mammal mane milk milking_machine multicolored_body nipples non-human_areolae open_mouth simple_background solo two_tone_body yellow_tail|7607030760