I just found out today, more than 1.5 months after I started working on the file, that Fensalra's eye color and mouth color are not actually identical:
The problem, you see, is that I have f.lux on my pc. It works absolutely great for reducing eye ouchy, even at the fairly modest setting I use. It does mess with color balance, but only after sundown, so I rarely disable it while drawing and just assume that if there's any colors that need wrangling I will catch it when I open the file during daylight hours.
And then I managed to only work on/look at Fen's file after sundown for an entire 1.5 months.
Luckily this doesn't cause any problems and it's quite fine this way. Just, wow! I'm kind of impressed I managed to fumble that! And didn't even realize!
both for kind sentiment and also because aaaa I love her