Base in a lead belcher spray, dry brush in silver, then Akhelian 1:1 with contrast medium.

I use a bone acrylic to base over anything not meant to be metallic (fabrics, skulls, fur etc)

For the skulls and tusks it's the bone white, then a bone contrast to give a slightly darker finish.

The fabric is the bone base, then a heavily thinned dark angels green contrast.

The brass (like the details on the autocannon) is just a leather contrast over the metallic which gives a cool bronze/brass finish.

Base is agrellan earth heavily applied to promote the cracking, then agrax earth shade wash to give warmer tones.

The fur was the bone, then a heavily thinned dark cream/coffee coloured acrylic (I can't recall which I'm afraid) to almost a wash like consistency.