Eye of Ice - update

Not a whole lot new to show. I've been working on the hollow areas around the eye, and am taking a top down approach to this. There are some really tricky folds around the eye, but it is coming along slowly. Ice is a relatively old horse and as horses get older their eyes become more "sunken" into the skull. This is what I am trying to portray with this painting of his eye - I also want to catch the kind gentle personality. Anyway, here is the update! Still more to do...