Self Critique

I worked this piece several times on inexpensive paper canvas.  I think I have the values correct and have worked out most of the problems.
I realized that I spaced the light on the shore at the same distance and I need to fix that. 
I need to warm the sky with yellow. 
I might have put too much light on the dominant tree in the foreground. This means I need to analyze the light and shadow in that tree.
I am, also, thinking I need to put some sky holes the back ground trees. It looks like a bird would knock itself out trying to fly through them.