A ten is supposed to be
perfect. If she has flaws, she's not perfect. A good example is Jesse Pinkman's Megan Fox. She has no flaws (that you can see).
Now take the DevilKangx example. You have that Latina (Vickyxlike...). She's short, fat, fake lips, saggy tits, tattoos (to hide C-section?), looks like a hoe in her late 30s
at least.
One that I consider a ten was Amber Heard when she was younger. Today we know she's crazy but we're rating looks:
Symmetrical face with feminine features (small nose, fuller natural lips, thin eyebrows, big bright eyes, straight natural hair, small ears, nice cheek and cheekbones...). Probably not a nice body as Megan Fox but still nice (good height, thin...).