Ooh Dalia is very striking!
I myself rarely touch Bella on the odd occasion I play in SV. When I do, my game mostly pairs her and Morty together, though in one save he is married to one of my own sims.
I've made her over once or twice, but I lose interest in her because my game has always seemed to assign her very "lukewarm" traits and she ends up a bit bland, like a bowl of milk pudding :D
I never really was one for playing premades really. Unless it's the Summerdream's from TS2.