Looking good. How about texturing it in the Battle of Britain colours? These were essentially the same as the ones you have there, but with black and white stripes on the wings, to aid identification. Technically, this model wouldn't have them, being a later version of the Spitfire, but I really do think they look good in that livery.
Cheers,
Malcolm
'England Expects That Every Man Will Do His Duty' - Vice-Admiral Horatio Lord Nelson - Battle of Trafalgar - 21st October 1805