Sorry for the late response.
I would like to mention I have seen many avocados on online forums. This has to be one of the better ones I have seen. You did a good job with the prune the branching is beautiful. I would not prune it again until it has at least one or two more sets of leaves. At this point it will be a multi-trunk tree if left with no more additional pruning. After you prune, you want to make sure the new branches create at least two sets or more of leaves. Always leave at least one set enacted. I prefer to let a shrub get four sets of leaves. Then I remove two of those sets. This is give the nice spacing you are looking for. You can see what it did and the space it now takes up after doing the one prune. This will happen again with additional pruning. With enough pruning you could end up with a big ball of a shrub that you maintain at a certain height.
I would suggest to let it at some point just grow. Maybe one or two more pinches and then let it do its thing. From that point you can prune it to maintain height.
Do not remove any lower leaves, if they are too shaded they will drop on their own. If you ever look inside a shrub you will see there are not inner lower leaves. They all dropped off naturally.
As the other respondent said, you need to repot or give it some food. Avocados are fairly heavy feeders. They make avocado fertiliser for this reason. I would invest in a small box of it. It should be properly balanced for avocado health.
Again, sorry for the late response.
