Site Grading Vignette and Question

[talc]

Hello All,
I'm taking the SPD exam in less than two weeks, and am starting to develop my process for the vignettes.
Could I please get some feed back from the forum on my first real attempt at the NCARB Grading practice vignette?

Also, I had a question about the points of swales. How pointy can they be? This sounds like a silly question when I say it out loud and look at other's examples, but are we allowed to have any place where the contour lines are closer than the minimum distance apart? If not, does this mean swales should have rounded ends that a sketch circle fits inside of, instead of being sharp points? I see both situations in the NCARB example solution.

Thank you for the feedback!

[talc]

I have realized that the northern side of my solution does not meet the minimum slope requirements. I didn't measure around the corner.