Rhodes here, using my temp account. There are and have been many talented concept artists at Bioware. I'm just a shameless self-promoter I suppose. Not only did Joy and I go to college together, but she spent quite a while at Bioware contributing hugely to dragon age and other projects.
I really like the middle one, mostly for the chainmail panel (unlike the crotchless ones). The feather-pauldron on the second one is lovely though, reminds me of Morrigan's outfit, and I like the baggy collar and trousers on the fourth one.