There is a community version of F-16 Texture template (by @Texac), which is completely day and night difference in quality compared to original texture template.
So... as tytle states, it would be great to update/replace:
default liveries with higher the ones in udpated template
default .PSD texture template (in downloads/texture templates) with improved version from @Texac
LINKS
Source Files: https://www.digitalcombatsimulator.com/en/files/3331063/
Updated Default Squadron Liveries: https://www.digitalcombatsimulator.com/en/files/3331062/
Original Forum Thread