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abs alien anthro balls beard bebop biceps big_muscles big_penis bigshadowdragon black_outline body_hair brain_creature deltoids detailed_background digital_media_(artwork)erection facial_hair foreskin genitals grey_body grey_nipples grin group gun gun_on_shoulder hairy hairy_balls happy_trail hi_res horn human humanoid_genitalia humanoid_hands humanoid_penis kraang krang light lighting long_penis male mammal manly muscular muscular_anthro muscular_male navel nipples nude outline pecs penis pubes quads ranged_weapon retracted_foreskin rhinoceros shredder_(tmnt)smile solo_focus teenage_mutant_ninja_turtles trio vein veiny_penis weapon yellow_sclera