Painting at last!
This is the Dragon Me 262A-1a/U4.
The 50mm canon is only sitting in place, just to see how it looks.
The colours are the standard RLM 81 Brown-Violet and RLM 82 Bright Green over RLM 76 Light Blue.
The nose, which has been added to a standard aircraft, is a different colour. In photos, the underside of the nose looks to me to be a slightly darker colour, so I've painted this RLM 02 Grey, which was the standard colour production noses prior to them being painted when attached to the rest of an airframe.
I've painted the upper surface of the nose RLM 83 Dark Green, as this also looks to be a slightly darker in photos.
4 attached images. Click to enlarge.