Nate Hallinan has been working the past few months (not weeks, as I earlier wrote. My bad) on Medieval Era X-Men. If you like what you see, go check out his art page, or his Facebook, or order some prints.
For the fullest artistic experience, I suggest checking out his Facebook page, wherein most of the final pieces of art have been shown in various pieces of work, such as this very early Colossus from February.
If you're just interested in the end products...
Edited to add: more, higher-res, images, factual correction