Anyhow, with the idea that imitation is the sincerest form of flattery I thought I'd have a go at something similar.
I've think I've used most of the same parts that Mikko and Kari used. Having said that the backpack came from Victoria Miniatures and he's got hold of an old rusty bolter.
I noted that The Spiky version of this features free hand writing on the chest plate. I kind of cheated here and used Cadian transfers but I think the effect works.