Comic book Battle scene Fictional character Fan art Comic character Ninja Turtles Comic art Mutant ninja Pop culture Teenage Turtles Teenage Ninja Turtles Action figure Book art Comic book art Teenage Mutant Martial arts Comic hero Warrior character Fictional characters Book hero Comic book hero Ninja turtle Comic series Mutant turtles Teenage mutant turtles Mutant Ninja Turtles Teenage Ninja Teenage Mutant Ninja Comic heroes Green skinned