Great aircraft shot, this works well because there are no background distractions (crowd, other aircraft etc..) and the prop and backgound are blurred as they should be. (Perhapse clone out the marking bottom left of shot though?).
With warbirds what you are looking for is an authentic shot. This is defineately one, but in my humble opinion you should either go for colour or black and white as opposed to an arty combination of both. A bit more room in front and/or behind the aircraft giving a more panoramic view could also work with a bit of tinkering in Photoshop.(The only other real critisism is the modern helmeted pilot, but theres nothing you can do about that!) Keep um coming. Rich