Eyes...lots of 'em

This is gonna be a picture heavy one, here. Here's the eye from the cabin:

Is it someone we already know? Or is this a new character/Jacob?

Jack's eye:

It looks too green, but if you compare it his eye as a kid:


you can tell it's brown.


Locke has the wrong color:

As does Claire: Boone: Juliet: Nikki:

Other than Jack, Desmond:
looks pretty good.

And here's "Jacob"'s eye from TMBTC:

But it may also be someone who hasn't had an extreme close-up, eye-wise, or it could just be someone we've never met/Jacob.