Sorry. I just found that thing of showing the veins and... oh well nevermind. I, don't think he shows the.... ... but he looks cool, specially the wings.
Top part of face looks good, but does not mesh well with the bottom. Partly I would assume that missing half the muscles of your face would seriously affect the layout and your ability to move.
Anyway appears that you've been taking a great deal of interest in anatomy...looks like its coming along. Just make sure to give the rest of the skin the same treatment; will make for a good showcase.