Well, the vote here at home was to retain the foreground hill, but to minimize its influence in the painting. So, I increased the amount of real estate the shadow occupies on the hill's left side so that it is almost entirely in shadow now. I left a little light to give an idea of its form. I also minimized the detail in the shadows; elsewhere in the painting, that's the way the shadows are working. Small details and rich color will appear either in shadow or light - but not in both. In this painting, all the detail and color really is in the sunlit portions, so this helps with the consistency of lighting.
Also, I wanted to post the other large painting, the one that really had two paintings in it. Here are the two halves. I've put the bottom on top, so your mind won't inadvertently rejoin the two halves.
I've really enjoyed reading the variety of suggestions and opinions. I'd like to hear what you think of these revisions.