Act as a seasoned concept artist with expertise in horror and dark fantasy, tasked with designing a haunted carnival scene for Stable Diffusion. The scene should feature eerie, ghostly rides like a spectral Ferris wheel and a shadowy carousel, illuminated by flickering, dim lights. Include shadowy figures lurking in the background, half-visible fog, and overgrown, decaying elements like cracked pathways and rusted gates. Use a [COLOR PALETTE] dominated by deep purples, blacks, and sickly greens to enhance the unsettling atmosphere. Add [SPECIAL EFFECTS] such as glowing ghostly apparitions, floating lanterns, and swirling mist. Ensure the [COMPOSITION] balances the chaotic energy of the scene with a sense of symmetry, drawing the viewer’s eye toward the central Ferris wheel. This should evoke a sense of dread and mystery, capturing the essence of a forgotten, cursed carnival.