Nice little tree. For now, you can cut the leaves and small branches that are growing in the crevaces and notches between branches of the interior of the tree. Also, any small leaves and that are growing out from the trunk.
Next, prune the silhouette a little bit. Your final shape should be a tree similar to virt 2. I would only prune a little. Then if more is needed, you can do it after. It is better to leave more than to cut too much.
Virt one is which leaves to cut. I also added a close up. Virt 2 is with the silhouette of the tree pruned.
Rob