Enchanted forest to dark cave 2D game background AI Image Prompt

Create a wide horizontal 2D side-scrolling beat-em-up game background map showing a seamless transition from an enchanted forest into a dark cave. Use a very wide panoramic canvas in a {argument name="aspect ratio" default="24:5"} ratio, with no characters, no UI, and no text. The scene is a hand-painted fantasy environment with muted earthy greens, browns, ochres, and soft dusty lighting, like an old watercolor or pixel-art-inspired game stage backdrop. The foreground is a straight flat walkway made of exactly 9 large decorative stone tiles stretching across the bottom third of the image; each tile has an oval medallion containing a stylized leaf or flower motif, separated by thin grout lines, with a narrow grass strip along the very bottom edge. On the left half, show a dense forest: tall thin tree trunks repeating in vertical rows, a mossy leafy canopy hanging down from the top, vines and undergrowth at the base, and atmospheric depth fading into green shadow. At the center-right, place one massive ancient tree trunk acting as the natural transition boundary; its roots and bark merge into the cave entrance. On the right half, show a dim cavern interior with dark rock walls, stalactites hanging from the ceiling, stalagmites rising from the floor, and deep shadow fading toward black, while still aligning perfectly with the same flat walkway. Make the composition side-view and game-ready, with clean horizontal layering, parallax-friendly depth, soft vignette at the edges, and a continuous navigable floor from forest to cave. Visual style: {argument name="visual style" default="hand-painted 2D fantasy game background"}, mood: {argument name="mood" default="quiet mysterious forest-to-cave transition"}, color palette: {argument name="color palette" default="muted moss green, sepia brown, dark charcoal cave shadows, pale stone"}.