Four brothers, ninja turtles, Michelangelo, Donatello, Raphael, Leonardo, green skin, red masks, blue masks, orange masks, purple masks, muscular arms, strong legs, ninja costumes, holding katanas, sewer background, city streets, night scene, dim lighting, dark alleys, trash cans, graffiti walls, dynamic pose, action composition, vibrant colors, comic book style, humorous atmosphere.