I made another Kuiper Belt object! I think it is best seen in this animation I made:
In this case I used two layers of displacement, using Mars for the large scale features, and the Moon, (with some transparency to moderate the effect), for the finer detail.
Here are a couple of still renders to go with it:
The colour is a simple gradient, with the darker shades for the lower terrain.
This technique is described in a previous tutorial I posted, which is available here: