You'll have problems with a strict Dutch scape because of the branches. The reason is because the branches draw your eye along the wood while Dutch planting is in isolated rosettes. The branch will look like it's striking through the plant groupings.
What you have right now would suit a nature style far better than anything else. Rocks can be placed at the base to help form a solid base as long as they aren't so interesting that it draws too much attention to it.
The arrangement of the branches if very good, though the strange corkscrew bends of the upper branch look off. That can be hidden with a tall stem plant.
What you have right now would suit a nature style far better than anything else. Rocks can be placed at the base to help form a solid base as long as they aren't so interesting that it draws too much attention to it.
The arrangement of the branches if very good, though the strange corkscrew bends of the upper branch look off. That can be hidden with a tall stem plant.