Newb, so brought you some salt myself. Sprinkle liberally.
I saw a very different product when I looked at this.
I would continue to cultivate the foliage until each pad eventually expanded together into one large pad in almost a cascade style effect, but leave and even improve the empty space between the trunk and the foliage that would only be broken by the branches.
I cannot tell you how to go about it, or how long it will take, or how well it will maintain that look, but it would look cool.