Drawn! points us to the website of Gerry Embleton, who appears to be a historical illustrator and whose work seems very familiar to us. He does military illustrations, he does costume sketches--he seems to do a bit of everything, and damn it all looks good. A quick Amazon search reveals 223 hits under Books. Wowzers.
That pic there is the only one of his fantasy series currently online, as his Wizard Wars fantasy website appears to be past due for an update. Can't freaking wait.