Twinbrook has some weird genetics for sure, but I'm fond of it. Amy Bull may look like a clown, but if you dress her up with regular clothes, she's stunning! (I bet @CravenLestat has already done it). I also like Cho SonWhun. I believe the Castors and the Greenwoods are cool too. There are some nice-looking sims among the Rackets and I give plastic surgery to several others.
DeAndre has a ridiculously huge mansion that is useless for a generational gameplay.
I think he always has children with Gala Ball in my games. Have you read "
Holland Family" by @emorrill ? She tailored an awesome story that involves many townies from Twinbrook.
By the way, I'm also Brazilian. :-P
People here are very nice and they're from many places in the world. Don't be ashamed of being able to speak in English and keep on upgrading your vocabulary. I guess grammar is the least concerning topic, though.