Curse this jaw!

Howdy folks! I'm currently wrking on a fursuit head that is meant to feature a moving jaw, prior to the attachment of the cheeks the jaw moved beautifully and now it barely moves at all. I have this suspicion that it eithers has to do with the foam being glued to the elastic, or the fact that the cheeks might be a wee bit too big for the head. It might even be a combination of both or more issues than I previously thought.




I'd love any opinions on how I can go about fixing this issue. If it involves removing the cheeks then I suppose i'll have to keep it a static jaw as I'm not too fond of having to destory the entire base of the head over two cheeks. I'm also curious as to if there's anything I can do to hide my mouth from view. Again, opinions are AWESOME.