critique

I recently just made a maple forest and would like to see a lot of critiques on this ! Please critique this maple forest so I can learn from them !

Buds are starting to break and I'm planning to repot this Kashima into an Anderson flat . I am going to remove the 2 lowest branches and possibly more. My question is should I leave some top branches in tact to improve sap flow? I'm happy with the trunk size. Looking to develop a small to...