Tiny Common Ash (fraxinus excelsior) prebonsai

Prebonsai, perhaps raw material suits this small Common Ash better. It is about 25cm (trunk).
Goal is about 30 tot 40cm, perhaps a more oval canopy, in a more naturalistic style.
As raw material, trained to be a proper prebonsai, strong growth is needed for several purposes, thickening of existing braches and trunk, gaining vigor and creating a healthy growing plant, produce enough energetic shoots, buds...to pick from and train in the future.

In 2 or 3 years, refining can start because in this small size I dont need a huge amount of branches to be able to start and form a canopy.