I'd love to see these as redesigns down the road. Caulifla looks like a better Raditz! And I like Raditz to begin with!
If U6 Saiyans were from U7 (source)
Nope; he only has the halo because he's technically undead while fighting for the heroes, & the personal Hell assigned to him is ultra saccharine to make him more miserable.
Haven't been watching, is Freiza.... good?