2 heads, elongated body, 2 faces, cropped image, out of frame, draft, deformed hands, signature, watermark, twisted fingers, double image, long neck, extra limb, ugly, poorly drawn hands, missing limb, ugly, over saturated, grain, blurry, bad anatomy, disfigured, poorly drawn face, mutation, disconnected limbs, out of focus, long body, disgusting, poorly drawn, mutilated, mangled, extra fingers, gross proportions, missing arms, mutated hands, mutilated hands, cloned face, missing legs, Poorly drawn or unrealistic anatomy, disproportionate body parts, inaccurate or inconsistent costume details, lack of attention to the character's facial features and expression, and a lack of dynamic pose or action. It's also important to avoid perpetuating negative stereotypes about superheroes or any particular group or culture.