Hey! I'm also not into those super sexy and curvy and fit sims we find in the gallery. I like to make sims that are very different to each other, and from several ethnicities as well. I >think< they are average in terms of looking real, but of course I think all my sims are pretty. You could take a look on my gallery if you want, I don't upload many sims but honestly I make sims for my own gameplay (except for my simself). I guess it's because I don't get much feedback, hahaha.
So, here is my newest (and current favorite) sim. She is supposed to be arab, and I tried my best to make her look like a stereotypical one (since there are white-skinned arabs and etc). I molded her face looking at a picture of M.I.A (yes it doesn't look like her on purpose, she's not supposed to be M.I.A).
http://imageshack.com/a/img924/9236/e2WQJn.png
You probably can't tell on this picture, but her nose is probably the most non-beauty-standard feature of her. I rotated it down and her bridge is very high. That's my favorite thing on her, not only because it's a strong feature on her that I never dared to do with any other sim, but also because I have a high nose bridge myself and this brings me confidence though I still hate it on me.