Thanks guys
. I think I
did make Don's cheekbones a little strong, I'll have to go and fix those later.
They weren't spray tanned they just had darker skin. Also I think you have the twins the wrong way around, I always considered Dina to be the grumpy one who was in things for the money. Then Nina was the one who had no goals and was more open to trying out her options.
I agree
. Dina was a fortune Sim and Nina was a romance Sim, meaning Nina was the flirty one and Dina was the gold-digger. Sims wiki has a chart of their personality points too, and they're complete opposites - Nina is neat, shy, active, serious and a little nice, and Dina is sloppy, outgoing, lazy, playful and a little grouchy.
As for the skin tone, they're implied to be of Spanish and Mediterranian descent, so it's natural that they'd be a bit olive-skinned. Sadly I had to make them a little lighter for the Sims 3 versions because the Sim's 3 has duller skin colours and they clashed horribly with Dina's hair.