|Waiting for the "last 5 strokes".|
Balancing the composition: If you imagine visual interest as having weight, the trees have less "weight" than the buildings, so it takes a greater length of them as a counterbalance. I will need a small dark shape somewhere in the lower left quadrant to balance the large collection of buildings on the center/right. Its just like a lighter child who must sit further from the fulcrum of a see-saw to balance a heavier child. The fulcrum is seldom in the middle because most of the time artists are deliberately balancing a heavier mass with a lighter one. That is an artistic balance of unequal parts or asymmetrical balance.
Check back in a day or two for "the last five strokes". Feel free to write and tell me what you would have done.