Updated: Increased height and foreground details, improving form of clouds, more crystals. Work in progress, 6k pixels wide and my laptop hasn't died yet. Need to detail scales, improve color/contrast especially around rider, and finish details on hands and feet.
Story: Prismatic Raven has come to the aid of her dragon kin, searching for dragon egg poachers (not yet painted). Dragons have been nesting along this ancient asteroid crater (rich in minerals and tasty gems) since their exodus from the extradimensional object known simply as the Sphere.