I recently uploaded this to a diorama maker, but because I'm unfamiliar with the settings, the Gunpla looked blurry, so I'm reposting it without any editing.
I incorporated Lieutenant Emma's uniform into the mobile suit design, creating a custom Gundam Mk-II for Emma Sheen using an airbrush.
The closest colors of commercially available products didn't quite work, so I mixed the paints while repeatedly checking Emma's uniform until I got the perfect shade.
I cut off the antenna on the Vulcan pod and extended it with brass for an upgrade.
To highlight that this is Lieutenant Emma's custom machine, I added a decal to the shield to mark it as her custom unit.

Emma Sheen's Custom Gundam Mk-II ② | スカーレットツイン's Gunpla works