such a pretty couple of folks!

The only of this couples which consists of two particularly good-looking people(IMHO).
While I hate Chel and Tulio as a couple, I have to admit that I find them visually beautiful together. I really like how Chel's curvy body and chubby face contrasts with angular and lanky Tulio. If only they weren't such jerks... Two my OCs who are a couple too have similiar body types.
I also really like Marina with both of her men but especially Proteus.
I don't really care about Joseph or Asenath's designs, despite liking their relationship.

He's really handsome, and she's one of the prettiest animated females imo.

The animation for Asenath and Joseph looks really nice. <3

They're both so attractive. Moses is also pretty cute and I find Tzipporah gorgeous so these two would be my next pick.

the only choice i'd consider "beautiful" individually and as a couple.

joseph is hot, and i love asenath but she's a little too disney-looking for me. they do look nice together though.
although tulio and chel are both gorgeous, the contrast makes tulio look stringy. imo chel would look better next to miguel, though i don't ship them.
moses is good-looking for sure, but not beautiful; not a big fan of tzipporah's looks.
sinbad is quite handsome too, but in a more rugged way. i'm not sure "beautiful" fits.

They're both quite attractive so they look good together.

Or Marina and Sinbad