Advice on foam head base

Hey there everyone, it's been a while since I've posted here but I really wanted to get some advice before moving to the next step on this head I am making.
It's of my jackal character, Ripley (http://s567.photobucket.com/user/kyralie/library/ripley), and I really want it to look awesome. Tacking some temporary eyes in place might give you a better idea but here it is without eyes. Does anyone have any ideas to perfect it? Does anyone see any major asymmetric parts? I've been looking at it so long I really need a fresh set of eyes to bring this sculpt over the top.
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Image may be NSFW.
Clik here to view.
Image may be NSFW.
Clik here to view.
Image may be NSFW.
Clik here to view.