I read through the whole posts .
For what the guy paid ,it is what it is . I think I charge 2900 for a half lifesize mountain goat. It's to be expected for the most part.
With what you got going on if it was tanned correctly yeah it can be fixed. The issue he ran into was in the type of stitch he used it's how he used it. I use the same stitch in 90 percent of my mounts. A baseball, a hidden stitch on really bad African stuff. If your seams are tight and skin somewhat lose you won't ever have problems. Now on the back of the hooves ,yep the seams aren't even closed . He didn't shave down the leg portion of the form enough .
It could be fixed for you ,but depends if you wanna lay down some money to get it done again or ,since it's on the wall on the backside where someone doesn't see it call it a day and a learning experience. You could ask him to fix it ,but then again do you wanna risk it.
The bullet hole in the side all he had to do was a football cut and sew it up , on the mouth portion that's a skinning or tannery thinning cut where the mouth portion was missing or cut off. All he needed to do was texture the area there and blend it in ,he blasted it white and called it a day.
So sorry for you issues but that's all you can do there. Call it a learning experience,or have someone else fix the legs which wouldn't be too bad,the bullet hole and mouth ,your stuck with unless you went with a full remount. And it wouldn't be any where close to what you paid originally