Things that make this piece great:
1. The fact that you did it from scratch.
2. The not-overdone-but-more-realistic shading.
3. The bowtie. Bowties are cool!
4. The fact that your signature is on a crow bar (or maybe it's a random lightpole that he picked up? Oh well.)
Seriously, how many people have a crowbar company?
5. It reminds me of this song: http://www.youtube.com/watch?v=SApK6IwP9EU
:)