Pretty good effort
This was cool I think some glowing eyes here would really accent this piece, This was pretty good as you do ad some nice line work, and detail effort ofcourse this has some good energy behind it, and thats one thing that I like about it and really drew me into it, its a nice drawing and or sketch as some may call it, anyways nice work you have presented here today.
~~THINGS TO IMPROVE ON~~
I think some glowing eyes here would really accent this piece
~X~