It is quite difficult to tell what branches are in there. But it does need thinning quite a lot and wired. I assume that is your front, I wonder what the other side is like? The apex is also dense and needs thinning and wiring and I would bring it to the left. Why don’t you send pics to Morten and come into the Q and A next Thursday when more members could make suggestions? I will be on as well as others. It is a nice tree, as for moss I look for moss and put a thin layer on the surface.