I'm participating in the Digirama Contest, Package Digirama category.
The unit is a reproduction of the "Enzian" used by Kuzunoha Lindow-senpai from Gundam Breaker Mobile.
It's an older work.
A unique feature of most NPC units in Mobile is that the main body can be created with just two kits...
Perhaps because this Enzian can be made with two relatively easy-to-obtain main unit models, I feel like I see a particularly large number of reproductions of it online.

Enzian Package | アルジドノ's Gunpla works