The additional pictures where the creature is moved are really revealing.
That is, revealing in that all the identifying characteristics of the critter are covered with sand (the forepaws) or shot at an unidentifiable angle
or distance (the teeth)
It doesn't look fake to me. But it does look like someone's trying to make it more mysterious. I'm putting my money on raccoon, going by the digits
in the initial picture, what I can make out of the teeth, and the fur in the later pictures
If there were something to scale it by and it were larger, my next guess would be some unfortunate mutt with some mastiff / bulldog type mixed in.