I qiute like this, and noticed the OSL. Good first effort.
I admire the way you are not afraid to try new techniques, post them for all to see and then use the comments constructivley- You certainly are improving because of this.
The brightest thing on an osl piece should always be the source of the light, in this case the orb. It looks like some of the light on his face is the same brightness as the light source where it should be dimmer.
A very nice piece none the less, a 7 from me