
He is very flashly and showy and blustering, but also easily impressed by anyone who conveys an image (truthful or not) of superiority. Also, they look hot together.
biggrin And would breed well even unedited, I think. Pastels!

She's not naive or silly at all--she's actually an icy and manipulative mean girl but she would certainly be able to play to his perceived desires, and she considers herself quite a beauty, for what it's worth--and I'm not sure if you'll dig the pairing, but I thought it was interesting how she pairs up paler, desaturated versions of his own colors... the mint and teal, and the red and salmon. Their edits match nicely too.
ALTERNATELY:

No no, hear me out. WHERE ARE YOU GOING? I think that although their reds are potentially a bit clashy the colorists would be unlikely to abuse that (I hope? lol), and I think his palette would look nice with a bit of black, and hers with a bit of teal. Also, I think her edits compliment his attractively, and she has interesting throwback potential to Fiend. She is incredibly sweet and quiet and self-assured, but she's also enormously trusting, so there is that.