I've made considerable progress since you last saw this. Quite frankly its looked liked this for about 3 weeks now as I have worked on other things.
Above you can see I have started on the chaosing of the Mumak, adding horns where there should not be any. The Mammoth is he, but obviously the Chaos Gods are mean. And this time I wanted some battle scars.
The sculpted howdah wood grain is all out of Apoxie Sculpt laid over plastic.
I'll be adding many more chaos symbols.
Above is some blended in Nurgle like stuff going on. The red and blue sharpie layouts are notes to myself as I'm going for different effects and fur line.
I was going to have third platform, but it just did not look quite right so the back will likely have a bunch of chains hanging down.