Note: This is not my design. I found it here on thingiverse, but it has disappeared. I'm posting this now so that I can post the make of it.

Per the Original post, this was part of a game by Paranoid Miniatures, it appears to be 2 of the Mythos characters combined into a single model.

I did look for the original owner, with no luck. I found this posting on the Paranoid Miniatures Facebook site:

Announcement

This has been a very difficult announcement from all of us at Paranoid Miniatures to write
but we have now taken the decisions to cancel the current Kickstarter for the Brotherhood
Expansion and also to close the doors on Paranoid Miniatures as well.

Per the original post the license was https://creativecommons.org/licenses/by/3.0/
which states:

You are free to:
Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material
for any purpose, even commercially.

This was the original thing:
http://www.thingiverse.com/thing:3295707