I concur, nice character.
Here's what I see:
You've got a dark outline around each of the different parts. The strong color contrasts makes this outline unnecessary. Keep the dark lines where it is needed for shading, but remove it where it's just separates different body parts and let the colors do the separation.
The hair needs to be redone, for a couple of reasons. The light in the image is coming from our left (per the shadows on the body), but the hair is evenly lit all the way around the head. Except the pony tail, which is in shadow. The hair strands should have some relation to the head/face rather than pure vertical since he has a ponytail.
The center of the headband is not centered between the eyes. Move it 2 pixels to our right. Or pull it around the other direction over the temple if you want a different style.
Likewise you could move the center of the white X on the chest to our right by a pixel. It's not that noticeable, though. Compare it to the belt buckle as a reference.
I don't think the collar is quite balanced. I'm not sure if it sticks out too far on our right, or if it's just too thick overall. Something there could use some tweaking. What is the collar supposed to be? Is it made from the same armor as the shirt?
Overall it's good, there's just a bunch of small bits that don't quite work as well as they could.
Tourist