Intense
Now here was a very intense piece I am loving the dark sense here but with the subtle light effects is notbad I think you can make those small areas more light up like the eyes and the light stretching around him from the back side light them up more and even more glow it will reflect off the dark tone and make for a really nice outcome in effects of course. This was a nice drawing you have and I bet your son just loves it it's a beautiful piece actually and shows a smooth feel and detail about it other then that I can't say much more other then that this is pretty good work and you should really show us much more of your works hope you bring out great stuff such as this one
~~THINGS TO IMPROVE ON~~
Awesome stuff maybe increase the glow effect of the lighted areas
~X~