Hmm, I can try xD Though any time I did it looked...pretty bad D:
I have a particular person in mind but it's hard to find good pics :c
It doesn't hurt to try, I even feel that way when I worked with C4Ds. I feel like at times they look all bad. ;_; So I try my absolute best.
You're already great to begin with and seeing you use real people would make your works more amazing. <3