are you doing a specular or are you limited to diffuse? i find a subtle diffuse and a stronger,bright specular gives me good metal results... atm yours looks too much like concrete than metal.
Here's a quick post with a little bit of progress. Between visiting relatives and other such holiday shenanigans, the going has been slow, but now that that's all over I can get back to devoting more than a half hour here and there on it. I've got the base materials down on the diffuse map, and I need to go in and beat it…
Well I think it is a step in the right direction. The thing about metal is it has a really high level of contrast which makes it look shiny. (Assuming your going with just diffuse...) Also, it looks like you did a good job painting the shadows in there, but now you need to hit it up with some strong highlights. Painting…