Design a Halloween-themed house resembling a giant pumpkin. The exterior of the house should be round with textured surfaces mimicking a pumpkin's ridges. Incorporate large, arched windows and a door shaped like a carved jack-o'-lantern face, glowing warmly from within. The roof can be a green, twisted stem extending upwards, adding a whimsical, spooky feel. Surround the house with eerie decorations like black cats, ghostly figures, and spider webs, set against a foggy, moonlit background to enhance the Halloween atmosphere