That "Twilight Tear" comes from one of the Warbirdsim "Then & Now" sets. That particular scheme represents the restored example owned/flown by the Fagen Fighters WWII Museum in Minnesota, today, which is known to be the original aircraft. The one that used to fly at Duxford as "Twilight Tear", then owned by The Fighter Collection, was thought to have been the original "TT" at the time, or at least was perpetuated as such, but wasn't. When it was brought into the US in 2007, and then sold to the Friedkin family, its original identity had to be figured out since the Fagen Fighter's Mustang was already being registered with the serial number of the original "TT", as it was proven without doubt to be. Through finding details of its original WWII markings still etched in the metal, and other clues, it was established that the former TFC Mustang was in fact the WWII pacific-vet P-51K "Fragile but Agile", which it was registered and restored as.
I say all of this because, in addition to having done the "Twilight Tear: Then & Now" set, featuring the Fagen Fighter's "Twilight Tear" (the original), I also did a repaint, long ago, of the TFC "Twilight Tear" (now "Fragile but Agile"), which, if there is any interest, I could bring up to current standards and release. There are differences between each, because when the TFC "TT" was painted, no photos were known to exist showing the nose art, so it was painted with a best idea of what it may have looked like. By the time the Fagen's "TT" was restored, a photo had surfaced clearly showing the nose art, so it was reproduced in exacting detail - and not to mention that the Fagen's example is polished, where as TFC's was not, and had some really great patina.