I know taxidermy is a personal preference, as seen by the huge variety of mounts out there. But most of those differences are in how the animal is looking, facing or turned. A few elk are mounted with an open mouth, but very few.
Where I see the open mouths the most is with cats and/or bears. For years, when I was a young fella, I didn't know that bears ever had their mouths closed. Every mount I ever saw had the bear in an open-mouth snarling position. Most cats (bobcat and cougar) are the same.
When I got my bear, I wanted him to look as natural as possible. I opted for a closed mouth mount. He looks like he did when I shot him. How many bears (outside of the movies) have you seen snarling and running around with their mouths open?
Which do you prefer.... open or closed?