Rei hasn't looked her best since 2015-2016 or so, but it's definitely been an improvement since she started this ReiRie project as compared to recent BRATS. It's like she's eating well again and laying off the over-the-top Korean makeup. She does seem happier with Rie, maybe working with Aya was difficult but who knows, those two seem to have a pretty good sibling relationship.
Rei is doing really fine. Went to one of her tour concert under Reirie this year. Her fans love her so much and she seems to be a lot happier now. Her singing also improves a lot though I still think she looks better prior to the plastic surgery.
She also features in a MV from Seiko Oomori's song. You can search youtube with this name to find it: みっくしゅじゅーちゅ