rockm
Spuds Moyogi
From the photos looks like you have long leggy branches. I’d cut those at least in half more reduce to a third. Wait for back budding later those grow out. Do the same. This process takes yearsI mean... How much can a tree reduceI look at this fella's leaves and his fresh push on nothing but back wood last year and I have a hard time seeing it have any scale.. definitely a big leaf maple
Leaf reduction is the LAST step in making a tree. Expecting it in such a new tree is unrealistic