Spitfire flying through a cloudy sky

A version of my Spitfire vector [link] with background (and possible wallpaper too). I had some fun with the shading.

Update: there were some rendering errors (apparently because of the "clip" feature of Inkscape) - these have been fixed
Update2: there were still some errors - I don't think that I will use "clip" again anytime soon

svg: [link]