Alexandra,
Thank you so much for your comments! The verticals in my painting need some slight touching up in a couple places, but they are not leaning to the left in reality like they are in the photo. I must've tilted the canvas or something taking the photo, although a couple verticals on the right seem fine on the pic.
I'm working on the walk.. I'm going to lessen the intensity of the green as it recedes, like you suggest as well. I think that will make a nice improvement. In the photo it appears a fairly flat intense green evenly across the picture. I wonder if I had taken the time to notice while snapping the photos if it would've appeared that way, or if it is a case where the photo doesn't pick up on the nuances...
I'll post some photos in a bit.
Christy