Great job painting it!
If I might make one suggestion/observation, Madcow does a great job with the bone as well, and I think one reason is the slightly darker "veins" he randomly puts in -- just for a bit more texture.
http://genesiscustomsabers.com/?p=25066
It looks like it could even be done with pencil (for a chalky, irregular, graphite look) and cleared over. Though I am sure that is not how he did it.

In any case, you did a great job. Definitely one of the most unique ones I have ever seen.