HD-2D pixel-art background concept for a side-scrolling a...

HD-2D pixel-art background concept for a side-scrolling action RPG, one single 16:9 game scene, camera tilted about 30 degrees from above, clear walkable lower floor, crisp deliberate pixel clusters, restrained background contrast, no UI, no labels, no readable text. The hearth city is built inside an enormous dragon ribcage: brass, riveted iron, bone arches, layered market stalls, cool night sky between ribs. Scene: the familiar market street after the heroes return, its central furnace completely dark, lanterns extinguished, snow blowing through gaps in the giant ribs, townspeople gathered anxiously in muted blue-grey cold.