Chaos Daemon Prince Behemoth
Reduced @100k faces, printed in about 3 hours.
Model height ~3.75" with a 4.5" wing span.

Needs full use of support.
Printed it rotated with wings flat as possible to the platform; even with supports the wings would fail when printing the model vertically in a standing position - ymmv. Support model included as well; printed the final large test model using Simplify3D as the slicer.

There are some issues with the carapace on the back of the neck and the gauntlet on the right hand; at times it prints hollow/spotty even though the internal model and wireframe skeleton doesn't indicate any issues; there are some hidden internal geometry that could be the culprit or issues from scaling down the model in my initial test.

I went ahead and included the gauntlet and carapace as separate .stl files for download if you want to include them in the model if it doesn't completely print out for you. Print them after the fact and glue them on. I'm using this for a new Nurgle force so I don't mind some of the missing elements from the print - it just looks like rotten/ripped flesh and bone structure...

The picture has Behemeth wearing this crown - thing:31928. It's truncated in the model and doesn't completely print at this scale anyways. I will end up adding some horns/spikes from my bits bin. The complete crown model is not included with this model but you can get it on Thingiverse if you want to try another method of printing it out and adding it separately - for some reason they decided to not allow remixes of this crown design
http://www.thingiverse.com/thing:31928

I can't find the original source of the chaos base; if anyone recognizes it please let me know so I can attribute the original author on this build.

In the end I swapped out the scorpion tale with a metal OOP GW piece from my Tyranid bits bin; works great as a proxy model for Be'lakor.

Green, Red - Prntrbot PLA
Black, White - Hatchbox PLA
60mm base size.