Recently discovered those on an old archive. I actually thought they were lost.
These ships, done in 2014, were inspired by the so-called "Californian drones" and part of a viral UFO hoax that existed around 2007. If you'd like to know more, just google for "C.A.R.E.T.".
I uploaded them to Sketchfab and they display *mostly* okay, except for some weird shadow issues on two models.
The other three pictures were from "Shintan", a game I wanted to use the UFOs in, but the models were too complex and the game lagged massively as soon as two or three ships were on screen.
Abyssian Seeker
You can see some strange shadow going on here. I have no clue what is going on, the wide arm is just a modified cube, flat surfaces and low-poly. I tried fixing it by rotating the parts, but it only sort of fixed one segment.
Again, strange shadows going on on that wide arm. If anyone knows how to remedy that, please let me know. So far I wasn't very lucky with Sketchfab.
The most complex of the four models, and it actually seems to work fine. Glad it does. Also animated.