Update. Had to shave down a few parts of the skull because it kept poking through, eventfully deciding to just turn it off (the skull) and work on it (the face, with references).
PLEASE HELP/leave crits. I've watched a few zbrush videos on drawing and the skull sculpting skulls. I figure getting the skull right would be much better than trying to just scuplt a face without a good foundation. Unfortunately, I don't have the time I'd like to commit to learning this and it's looking like a weekends…