go here, sign up. www.sharecg.com/login.php?ref=… GET THE OBJ FILES(OBJECS) also materials like sky's. I open the obj's to my Bryce, by import file, and add my own materials to the object, which is textures. You can delete the ground if you wish by using clear, and add the sky you choose, or just a plain color sky to be removed later. Just by exsperimenting, like I did, you learn what to do.