Sculpting a hyena base -- critique would be lovely!

Hello everyone! I'm currently working on a suit of my hyena. I wanted to familiarize myself with the molding and casting process so I chose to sculpt his head out of plasticine and then cast it in flexfoam-it. Here's what I have so far under the cut:




Please let me know if you think anything looks off! It's my first time sculpting something like this so I need all the critique I can get.