Great work man. The Piranha is amazing, well done!
loving the underwater creation and criatures
Amazing work Maarten your style are unique.
This sofware looks incredible, I have to try it and the renders are very good Pixologic rock. 
Looks like something out of River Monsters.
Your work is really impressive, so much so that I’m hesitant to even crit, but can’t help but feel that you could pull better focus to your water creature by applying selective paint detail (+sat color, pattern) to the face, even possibly the tail. Your little diorama is beautiful, but the swamp creature would ‘ping’ a little more with this emphasis. With my first visual hit I feel I’m struggling to find it’s orientation.
thanks again,
Great work!
Cool, nice design.
cool stuff dude
Simply elegant work, a fine example for inspiration and further improvement. Thank you!
http://www.zbrushcentral.com/showthread.php?172997-Bronzozaurus
I like your work, very detailed and fantastic!
Cheers
Caglar