question..... did you case your leather? not to point out your faults, but it looks like mine did the first time I tooled. meaning dry leather.I was fotunate enough to have a good teacher, and they taught me to wet my leather thoroughly, and wait for the top grain to return back to the original color, and then to feel the leather with the back of my hand. if it felt cool to the touch, it was ready.when I use my swivel knife, I cut 2/3 of the way though my leather, and swivel the whole pattern at 1 time.when you go back through and start beveling, bevel as deep as your cut.dont rush this job, take your time and learn to walk the beveler.if you are doing it right, you wont see any choppiness in your beveling.If you do, go back over it to remove it.
happy tooling!