Looks like the benchmark areas already uses dawntrail lighting, and character creation retained "old" lighting we currently have ingame.
New skin textures were probably created with the new lighting in mind and devs forgot update lighting in character creation.
That means that our characters will have the
same terrible look in all
old areas with old lighting (as seen in different background previews in creation) and
look much better in
new dawntrail maps unless they update lighting in all old areas.
It is just my own hypothesis so Im not sayin it is exactly like this
Would be best if devs write an official pronouncement regarding this character rework fiacso, at least to appease all that displeased players.