a green, glowing, gnarled-clawed creature with a ferocious grimace

green glowing gnarled creature grimace claws monster alien horror fantasy creepy scary fear nightmare grotesque monstrous unnatural terrifying frightful spectral unearthly eldritch macabre haunting sinister ghastly fearsome ominous dreadful eerie phantom hideous gnarledclawed ferocious digitallypainted fierce expression generative