abs anthro biceps big_ears black_hair detailed_background female fur green_eyes grey_body grey_fur gym hair muscular muscular_anthro muscular_arms muscular_female muscular_legs muscular_quadriceps muscular_shoulders muscular_thighs on_knees paws quadriceps round_ears solo triceps veiny_arms veiny_biceps yoga_mat hellapoc annette mammal mouse murid murine rodent