We have an awesome collection of Monster Portraits done in Zbrush by Idrassi Soufiane, a digital artist from Marrocco. These Zbrush concepts look so amazing even know they're monsters.
I really enjoy the work of people who master computer graphics. Since 3D early days, I've been a aficionado for this fine, tricky art. Maxim Goudin, a designer from Mother Russia has got a super amazing set of 3D works, worth checking out.
Here you can see some of his commercial works. All of these are stellar, but my favorite is the city model... I would more than happily play a city simulator game developed by him. It looks better than Sim City! It would be insane. For more of his work, please visit his portfolio at Behance. Have a great weekend, guys. Cheers! ;)