Site Design Vignette- Sbyrktct's ALT-1 - Please Comment!

[AMSinger]

Hello, this is my first completed attempt on Alt 1 for Site Planning Vignette. Any comments are welcome.

A few questions:
1) Can new trees be located within setbacks?
2) Can new trees be located on/ in the plaza?
3) Can a walkway cross a driveway to connect to the plaza?
4) Can the drip-line of a tree overlap the plaza, setbacks, parking space or walkways if the center of the tree is clear?
5) If approaching from the side, does the service drive have to cover the entire width of the service entry?

Thanks!!!