hi,
i think that you have to have two rows of conifer tree when the wind is perpendicular.
also i don't know how many trees you are aloud to take out but currently you have 5 ?
I'm not sure bit it like the dimensions of your second to last parking on the left might be another size ?
I just started studding i might be wrong but just in case
btw: in what program are you practicing on ?]