Beautiful image, I congratulate you on that.
But please be aware that the S.6B only evolved into the Spitfire, and to use imalko's phrase, the Spitfire was only based on it insofar as we are talking about the Supermarine 224 Spitfire. This was the fighter that Mitchell tried to evolve from his racing seaplane. Even then when he was finished there was very little of the S.6 left. By the time he came to the type 300 in the form in which it flew there was absolutely nothing left either from the S.6 or the 224, 'our' Spitfire was completely new in every respect.