The Galaxy River

A swirling spiral galaxy designed to layer ON TOP of a section of the yellow road ... soft pastel nebula in deep blues, purples, dusty pink, and warm white, with semi-transparent or fading edges that blend into the yellow road at top and bottom. NO black space ... the dark areas should be deep navy or midnight purple, never pure black. The spiral arms should feel painted, not photorealistic. Magical, otherworldly, but still warm.