Huge lizard with a spinosaur like sail on its back, two horns on its head, and stands upright like a t.rex in 8k

out of frame, text, error, cropped, worst quality, low quality, ugly, duplicate, morbid, mutilated, out of frame, extra fingers, mutated hands, poorly drawn hands, poorly drawn face, mutation, deformed , blurry, dehydrated, bad anatomy, bad proportions, extra limbs, cloned face, disfigured, gross proportions, malformed limbs, missing arms, missing legs, extra arms, extra legs, fused fingers, too many fingers, long neck, username, watermark , signature, abnormal hand, abnormal leg, weapons, eyes