My leaves are gone on the maple. The Dawn redwood is getting close to being all gone also. Repotting time.
Also, now is a good time to grow moss(well, here) for the ground cover.
Grind in a blender or chop up fine and add water, some light ferts, and then slather it on the soil and around the base of the tree. Mist often(daily) and hopefully 30-50F temp ranges.
My Chinese elm tends to lose some leaves, but not all here, the cork bark elm loses most of them. The rest are evergreen.
Antbug, you might wire those branches and then the ones you do not want.
Winter maple branches are brittle, be careful.