underwater scene

[elcor]

hello guys i am trying to make one underwater scene in 3dmax, at the moment i want a render them make it animated, something like this
[video=youtube;Zw7h6jA4OYg]http://www.youtube.com/watch?v=Zw7h6jA4OYg[/video]

and this is my first try :


i need some advice and tips.

i am using 3dmax 2012 and vray for rendering

thanks !