Call of Chaos V Iron Warriors WIP

Using some putty to create some MkIII armour for an Iron Warriors squad. I've got the proper Forge World heads, and I'm going to modify some old Berserker backbacks, and I got the shoulder pads from the GW website, but damned if I can afford the FW figures. So, you know, green stuff experiment. I'm sure I'll perfect my technique before I'm through...