This is what I ended with. Originally I had a more rounded design but it looked bad. The main thing I wanted was a curve that still showed a body line. So after reviewing the first iteration I cut the back of the heel down to create a sharper line so the body outline is still there.
Feels pretty good but it was a lot of work. It is going to cost extra because it took almost all day to do... I don't want to do that again for free.