The most interesting part of this character's art, in my opinion, is the mask hanging at his waist. Does he lead a double life, in which he's a masked vigilante? Is he a salesman of masks? Mystery abounds.
As far as my image goes, I find it interesting because the tall character int he middle looks dark and sinister, like some kind of antipaladin, and yet it looks as if they're protecting this small child-like fey creature from harm. Perhaps their gloomy exterior is just a facade to intimidate potential opponents, and they are actually kind at heart?