Those are all kinds and flavours of awesome. I especially like the bulked up legs, because the standard ankles in the XV8s have always looked exceptionally fragile to me, especially considering the size and bulk of the main body.
Just don't make a mess of them when putting the paint on!
I'll be honest, I break out in a bit of a cold sweat when I think about painting these guys. I have come up with a basic scheme that I rather like but the prospect of seriously screwing it all up does scare me. I have been taking steps to really up my painting skills as well as figure out how best to simplify the most complicated steps. Usually my biggest fear when ever I start painting figures is the messing up the primer. Bad application of primer can easily cost you the model (I should know, that is how I lost my first two suits in this series). What I do now is use Reaper Brush-On Primer and my air brush to lay down several thin layers. My test models aren't looking to bad however I am still dancing around just getting started.
My grand master, spiritual leader, and writer of exellent tutorials is Ghool and the rest of the team at Hand Cannon Online: http://www.handcannononline.com
I have been using their techniques for a while now and all in all I have noticed a serious improvement in my skills which has helped me expand my conversion business to include painting recently. I strongly suggest everyone check out the tutorial section of their site.