I wouldn't call it a prompt fail, considering the outcome is right up my weird surreal taste, so I am keeping it, even though it isn't a albino doll, nor a cowboy riding an alien.
At some point it might be a image I could evolve, using a different (or altered) prompt.
Rastafarian Albino Doll riding Giger's Alien in a battle scene against tiny cryptid munchkins Detailed ( painting by artist Hieronymus Bosch 1.5) a weird scenery at the Cryptid Taxidermy Museum in post apocalyptic Wonderland, Pieter Brueghel, Jan Van Eyck, intricately detailed, hyperrealism, fantasy, ...