Hi Drew..you are definitely headed in the right direction. I would have cut this back even further. When it grows out, you are still going to be left with a bush because of the branch placement and structure. This is how I would have cut it. Then when in fills in, you will have a nice little tree. However, as suggested, I would let it rest for now.
Here is a virt of what I mean with the cuts then when it fills in.
Rob