Don't expect to find a set of rogue tier 9 in the real world, but there are certainly themes, styles, and colors that can be used as inspiration for a more Earthly, less fantastical outfit. Some of Azerothian Appearance's attempts are better than others. Tyrande (seen above), the aforementioned rogue tier 9, and an outfit based on the aesthetics of Crystalsong Forest all look great, but the Stormrider's Regalia ... perhaps not so great.
Go show Azerothian Appearance some love, and come up with some of your own WoW-inspired outfits! I would, but I have the fashion sense of a dog with mange.