The thing about it is not being too big, but the brushes are actually over the focal, which is usually a big no-no. Erase part of it, assuming you've divided the brushing by layers.
You'll really need to read this: http://kh-vids.net/showthread.php?t=12216 Stop commenting for postraises. Make some actual cnc.
Personally, I like it, so nice job! The one thing is that it's kinda hard to read the ROCK ON part. Other than that, great!