Looks good. I saw this Digital Tutors tutorial awhile back. Your render looks good, Like said the reflections are a bit too high, but then again so were the renders that the guy's at DT did.
Nice model!
www.stevenegan-cgi.com
"Your weapons are no match for ours! People of Mars, surrender!"
"Um, this isn't Mars. This is Earth."
"Earth? Earth-with-nuclear-weapons Earth?"
"Yes."
[long pause] "Friend!!"