Some of these assumptions are flawed.
I made no assumptions. This is already all over the major bigfoot sites.
The face is identical. No judgement is necessary, imo.
They added some fake teeth and a fake tongue to the head.
Remmber that this particular costume has a fully formed fake head to make the wearer appear to be 7’6” tall. The wearer’s head is actually in the neck area. The wearer looks out through the neck. This costume does not use a mask for the wearer’s face.
Overlay comparison:
http://forums.randi.org/imagehosting/thum_826448a261b28d717.jpg