This is what i'm working on at the moment. (with blender and blender2crystal)
The cave consists of roughly 2k faces. You see the entrance to a labyrinth, which you have to pass to access a temple.
At the moment the lab only consists of this first flying rockformation and the goal is to reach the blue crystalthing in the middle. this will be the entrance to the temple.
What do you think?
(sreenshot erased)
and i also need some help with these strange looking edges ...

how to avoid them? simply smaller faces? or is the angle between the faces the point?
also i need some information on lightning ... esspecially the attenuationmodes ... when do i use what kind of attenuation?
so feel free to criticise ...
P.S. i'd really like to contribute to planeshift and i hope this cave will probably someday be implemented - is this really possible?