3d_(artwork) 4k 9:16 absurd_res anthro anthrofied big_breasts big_butt breasts butt cutie_mark digital_media_(artwork) equid equine female friendship_is_magic hasbro hi_res looking_at_viewer looking_back looking_back_at_viewer mammal my_little_pony pootanger_sfm rainbow_dash_(mlp) solo step_pose tail