Bonhe,
This is just a suggestion from a novice who's only seen a photo and not the real tree. That said, I might consider not just "bringing down the top a bit" but actually removing that whole branch leading to the apex. It seems a bit thick to me for something so high on the tree, and I think you may have better possibilities with some of the smaller stuff on the left. (Of course, you'll need to further develop and train that area if you do this.)
If you don't like that suggestion, just toss it in the trash.
Other than that and what others already said about the jin, I probably wouldn't change much at the moment. It's a beautiful tree.