I like it, but there's too much of it,
. The trees look to be exceptional. Their presentation isn't dynamic though.
I'm hardly an expert, but it strikes me this way: This display is really two displays--the one on the right and the one on the left. The trees on the left step down towards the middle. The trees on the right do the same. The result is too symmetrical-- and compositionally unexciting. An asymmetrical presentation would serve all the trees better and liven things up a bit.
Also you have mixed tree designs and species, which confuses the final image. Do you mean to convey an "alpine" feel? or a lowland woodland--you have a contorted juniper and a myogi decidous tree on the same visual plane. That's contradictory to me.
Splitting up the display into two, would help give the subjects of each more impact, I think and emphasize the "feel" of each. Simplicity is better than complex. Try to make a display do one thing well, not four things all at once.
Also, can't really tell what the scroll is. Looks to be some kid of bird in a willow. I would avoid using any scroll that contains a tree, or limbs, or trees leaves in displays that have live trees. If you split up the trees into two displays, matching appropriate scrolls (or suiseki or okimono) is easier.
