A Mustang MkIV (KH729) Y2 A - Squadron Leader Mitchell ‘Johnny’ Johnston 442 Sq. RCAF - RAF Digby (UK) June 1945.
Just extract the file and place it into your Saved Games>DCS.openbeta>Liveries>P-51D folder and BINGO!
The images have me dressed as Santa as the pilot. This is NOT the case in the actual .zipfile by the way! It was merely a way of me passing on Yuletide greetings. I wouldn't inflict ME on you as the pilot as it would probably end in tears!!
Have fun,
Rap