Here's the build before I added the bottom section from the sacrificed Swarm Node. As you can see it didn't have enough detail and required expansion! :P This was also before I made the build properly modular. Now, aside from a few bits, it can be reassembled quickly. Also, if all goes well, the complete build will be on display at Brickbash at the end of February!
https://imgur.com/a/3woKgrT - pics
Also that. I think the lack of cube that made me think Necrons first.
I definitely have learned a lot about WH40K lore this year.