Very nice!! I say hire this artist.
I especially love the Derakeer and Strider.
Now, there are some things I would love to see next:
1. Some sort of battle scene (I know, it's not that easy to do, but that would be awesome!). Roban smashing a Grishak with his club, while having another in other hand. And a 3rd Grishak there ready the strike from his distracted side.
2. Fubarnii in color?
3. Delgon architecture or landmarks.
Keep up the awesome work Mike!