Looks decent!
My critiques would be:
1. All lines need to be beveled. Like the whole bottom half. And the lines for all of the vines need to be beveled according to which vine is sitting on top of the other.
2. Your thumbprinting needs a little work. Make sure you hit the tool square and don't lean left or right. Also let it fade a little more. Seems like you have one good impression of the "heel" and then nothing. Needs a little more fade-out.
3. You mentioned this, but you can see all of the beveler tool marks. It isn't really about sliding the tool beveler. It should kind of hover very slightly off of the leather. Hit and move, hit and move. It just takes practice. And yes, bevel deeper.
4. As for the bar grounder, try not to use it in a pattern. The reason it looks bad is because you hit once, moved left, hit once, moved left. I can see the way you moved the tool as you were doing it. Try to spin the tool and make it impossible to tell which way the tool was facing when you hit it.
5. Hit that undercut a little harder. Gotta lift those leaves up.
6. There are some impressions on the vines I can't place. Did you just use the modeling tool up on the top vine in the last picture? I'm not sure it needs it.
Anyway, I don't mean to be critical, just trying to help you get better. Looks good for a first shot, though!