It's not that realistic. There's plenty of CG in cinema that looks more realistic. I'd say the Final Fantasy movie looked more realistic, and it came out seven years ago.
Honestly, I think we're still at least a decade away from CG which can't be pegged by people as fake within 10 seconds of watching.
"The worst part about these reviews is they are [subjective]--and their scores often depend on how drunk you got the media at a Street Fighter event." — Mona Hamilton, Capcom Senior VP of Marketing
*Image indefinitely borrowed from BrainBoxLtd without his consent.