Brush painting, full paint job.
Construction theme: Space weathering
The Messala doesn't seem to have suffered much damage, but since it's Scirocco's prototype, it's probably been subjected to a lot of heavy use. Also, the image is mainly of space.
Therefore, I aimed for a faded paint effect and a dust effect caused by static electricity.
I used gunmetal primer as a base coat to represent paint fading and peeling. No rain streak effect was added.

HGUC Messala | 量産型リビングビルダー沖's Gunpla works