The theme was to MOC another LEGO® theme in Bionicle/HF/Technic.
About this creation
So I chose the Space UFO theme from the 90s, that beautiful series of heavily-decorated aliens piloting light grey, neon green and red (occasionally blue) ships. The only set I've got form this line is the Radon Rover actually. The MOC itself can be considered, story-wise, as another of Nuparu's experiments, who knows. I got the name from a fantasy language generator, it means "UFO". Enjoy.