As per request, something Fallout. This started out as an X01/Advanced armour but I decided to do my own thing instead. It's more slim than the typical Power Armours and fairly "designed/engineered" looking so I plopped on some random spikes and rust. When doing research I looked at all the armours in the games and... some have a tendency to looks like bits attached to a player model, which kind of work in a postapoc setting I guess. But I wanted something with a bit more engineering. Not sure how falloutish it looks, but it might work for some custom faction.
I've left the line art process in, in case it is of interest. It's just pose, fade, detail, fade, more detail, then line hues (brush in colour mode), and finally my colour layer (multiply) and adjustment layers (colour balance, saturation).