That's a little pretty SMB2 you have there!
The obvious colour scheme for the Gnat is the Red Arrows one. If not, a colourful example from a Flying Training school.
I'd like to see a Scimitar or a MiG-19. I don't remember seeing many models of those (but the MiG-19 may exist as a commercial model). The whole list is nice though. I live the EE Lightning and the F-100.