V3P2 ~60%
Return turned his back to her to go to his room.
Should probably be Ren.
This, combined with the outfits the party guests wore, the sight was absolutely resplendent no matter where one looked.
The sentence is wrong. It would be possible to use Thus in place of This, but I doubt that was the intention. So maybe
This combined with the outfits the party guests wore for a sight that was absolutely [...]
without the commas and with the small change in the middle.
~83%
Their daughters understood this, stepped away from their fathers' quiet battle.
Feels like something is wrong or missing. I'd say stepping instead of stepped would suffice, or an and connecting the halves.