These are the 28mm version of the Critical Mass Games protolene ( wolfmen ) battlesuits.
I'm using them for 15mm.
I think they were only available through a kickstarter campaign, not sure if they were for sale.
Almost everything was fitted with magnets to have max variation.
Black Undercoat with spray can
Rust Brown zenithal overcoat with spray can
W&N Liquid mask applied in patches
Sponge GW Khaki Brown, then GW Bestial brown then finally GW Ivory
Recesses done with W&N Peat brown ink .
Took the photos outside in the sun. It was so sunny that models heated up, literally !!!
Thanks for your comments.