Membrain, u're fast and dedicated - I like that
I will skip the things I like - this head has too many of them and I will go to the things I don't like
eyebrows - position and color - somehow they don't look like eyebrows
iris - color, and they r both the same
blood in the back - too simple and too red, I'd prefer it if u make it an relatively old wound - google this word many interesting pics come up
now u have a lot of fine tuning, adding all those little details, if u don't mind, would u post a flat in the future? It would be much easier too keep track of things