As always, I am super impressed with the level of accuracy and attention to detail of Flight Replicas aircraft, down to the numerous production and post-production differences throughout the aircraft from one variant to another. If you jump back and forth between just the C-54A and B alone, there are all kinds of differences throughout the exteriors and cockpits, down to differences between early and late style instruments, instrument layouts, switches, radios/antennas and even the oxygen regulators are different, with the early and later styles - not to mention jumping back and forth between the original production-era examples and the post-production/more modern era examples, with all of the differences in layouts, hardware, paint finishes, upholstery, etc. In particular, I really like the overhead windows added in the water bomber variant, which are great when it comes to making tight high-banking turns. The detail in the engines is also incredible, as is how the entire forward cabin is modeled/textured in such great detail (and accuracy), including the navigator and radio operator stations. At one time, I could never have imagined having such detailed and complete versions of these aircraft for flight sim - it is fantastic!
Some repaint ideas when the paintkit becomes available - the Blue Angels R5D 50868 from the 1960's, and the Berlin Airlift Historical Foundation's restored/currently flying C-54 "Spirit of Freedom" (after its most recent refinish/repaint).