This is a 3d model of the Rocinante aka the MCRN Tachi from the SyFy and Amazon Prime show The Expanse.
I started with this excellent 3d render by Anton Perfilev https://sketchfab.com/3d-models/mcrn-tachi-5cc7b9ac82db44a18aa9d37afe1498d2 and then overhauled most of it. I made the antennas removable in this version after I dropped my version 1 for the second time. I added the keel mounted rail-gun and made the engine supports solid.
The author hasn't provided the model origin yet.