Looking good Daniel. The painting guide in the background of your pic appears to be of a Mk1 Spit. Don't forget that by 1944, the RAF were using Dark Green, Ocean Grey and Medium Sea Grey, not the green, earth and sky shown on the Spit. Also, not that it matters much for a 'What if', the pattern used was Scheme B, where the Spit shown is the reverse, Scheme A. I wouldn't worry about the latter though, just use the Spit diagram, and substitute the Ocean Grey and Medium Sea Grey. Should look cracking in RAF finish mate!!