That picture is indeed from DCS P-51D, an internal version, with a 3rd Party Fw-190. I believe (but do not know for sure, so don't complain too loudly if I got this wrong) this aircraft is intended to be released as a free mod by it's author.
Well Im hoping you are right then

I know this probably has been asked before but, would it be possible to get the A2A planes into this SIM? If they can get a team who is already working on high fidelity modelling of these aircraft it would make it easier for the guys at ED, that is if it can actually be ported in some way or at leas partially.Forgive me it this is non sense, Im just hoping something similar can be done.