Very nice.
I would let it grow this year. Don't do any serious pruning, except to maybe bring it back inside its current silhouette. Just focus on keeping it healthy.
Next year, when it is time to repot, I would pot it lower into the media. This is a young plant, you want to keep the surface roots buried until they are much larger. You have a very nice full nebari, it will be great, if buried for a few more years. If you expose the nebari too soon, the tree won't thicken those surface roots, it will use lower roots that are well buried instead. So keep your nebari buried until the tree is 5 or more years older. Then you can expose the nebari and you will have nice fat roots like an old tree.
In a year take a bunch of pictures, you should have many more branches, then you will have more to choose from, and we can help you plan a style for it. Right now, don't prune much, you want to keep all options open. Just get it growing vigorously. Get it happy enough to give you a few cherries to taste.