watermark, signature, username, artist name,  cockpit, planets, debris stones rubble,planet, car, truck,  plane , wheels   frame, duplicate, bad anatomy, bad proportions, cloned face, disfigured, fused fingers, fused limbs, too many fingers, long neck, cropped, worst quality, ugly, deformed, noisy, blurry, distorted, grainy, high contrast, over saturated, glossy,