I decided to get my daughter Sara's opinion. (If you haven't done so, please check out her website. She is an amazing artist!) She looked at the jpg and immediately pointed out that the grayish tree line just wasn't working. It effectively broke the painting down into two pieces, a top and a bottom. And of course I then saw it clearly for myself. So, heeding her advise, and wanting to impress my lovely wife, I worked in some burnt umber and burnt sienna into the offending area, and, I believe, the painting has been significantly improved. Judge for yourself.
First version
the Springhouse acrylic 48x36 $3500
final version