This is an old-fashioned Onmitsu Gundam Aerial, made using the 78th Musha Gundam.
I originally intended to match it with the Legend BB Musha, but when I lined them up the balance was quite off and the Onmitsu helmet wouldn't fit, so I went with the 78th.
Using the 78th body as a base, I made it so that you can switch between the Onmitsu and Musha armor. The Musha armor is glossy, while the main body and the Onmitsu are semi-gloss.
I struggled with the color, but I wanted to make the Onmitsu Gundam more, so I went with the Onmitsu.
I used Shabaro eyes for the eyes, so they're yellow.

Secret Agent Nomaru Gundam | もんもらんしー's Gunpla works