This is a FSX screenshot of a P-51D donning Bud Anderson's "Old Crow" 363rd Fighter Squadron, 357th Fighter Group paint scheme. It's the A2A Simulations AccuSim P-51D for FSX. Using their paintkit, I added the Old Crow logo, letters, and labels following very closely to some dated photo's of Jack Roush's P-51D Old Crow, now owned by Mr. Jim Hagedorn. A renown WWII pilot has been added (photoshop'd) to the screenshot for an additional effect.
Below, this is a comparison between a screenshot (with the pilot inserted afterwards)
and a real photo.
Looks pretty close, doesn't it?