Stuck on foaming? (redlines appreciated.)

Hello! I'm trying to make a partial fursuit of my jackalope fursona, Shope. I got a little bit of very basic foaming done, but I'm afraid I got a bit stuck on the rest of the shape.

Here is her ref sheet:
and here is the current head shape:

(excuse the bad photos. :P) It's built on a balaclava base with a moving jaw. I'm going for a mix of cottontail and jackrabbit, with a predatory twist. Ideally, she will have a mischievous/grumpy expression. Keep in mind it will have antlers and big saber teeth. Any advice on shaping and/or redlines would be greatly appreciated!
Thank you!