Hyper-realistic 8K 3D depiction of a ninja turtle, showcasing extraordinary attention to micro-details and intricate textures; the turtle's leathery skin is depicted with lifelike precision, capturing every scale and wrinkle; its vibrant shell displays a mesmerizing pattern of colors and markings; each detail from the subtle muscle definition to the reflections in the turtle's eyes is crafted to evoke a sense of realism; the setting is a gritty urban environment, adding a layer of authenticity and depth to the character's persona.