i made this model about a year ago, but today i went back, edited it, changed the camera angle drastically, and rendered it with vray free(not at home ><)
the original piece by me rendered with scanline can be found here:
and also, thanks to MC Escher as whom i would never have made this.
many views…no comments… 
to be honest i prefer the other one ..are you going to put Bipeds in this one ?
Thats cool, I started to model it, but got busy with work.
well ok cool.
i want to see the final and edit the original idea could be nice !
good work!
don’t need gravity… 
nice Escher!
nice job 
-dave
Escher might have wanted a close look at this kind of 3d modeling…