I would like to add.....this species only grow one flush per year in early to mid summer. When the flush is done, it needs to be pruned for balance. Cut heavy growth back hard, medium buds less hard and leave the weakest ones. Do not cut into last years growth, but leave at least some of the new needles. This task balance the vigour and prevent weak branches from dying.
When it comes to styling, I cannot see any other option than keeping it as a semi cascade. The apex is there and the cascading branch is there. However, there are a heavy branch in between that I think may need to be removed. But it is your tree and you are the artist, the creator. Whatever decition you make, just make sure that it is what YOU want to do, not what anyone else wants.
Everything allready said still apply. Don't do anything now except for planning for future design. Once you are ready, reach out to someone more experienced for support.