Feng-Zu uses a very good technique. I really like it's style, the only thing I get trying to make concept arts are stick-man (yay I made Slender).
It's curious: I was looking at the
Characters-Creatures section (I love them! :3) and I saw that this guy loves organical-robotical monsters, a lot of them have metal or something like that. He is very different with the ages, sometimes the scenarios are very ancient and others are kinda modern. Like me! This guy is amazing, if he was here I would give him rep+.