I love the way that the squirrel is half in the light, it's like it was caught in the middle of some mischief. The expression on its face is priceless, it's like it's saying "Uh-oh..." The only thing that I can really think of that I would critique on it is the green blur in front of the log under the squirrel's back feet. Is it a fern? I think it is, but the definition of the fern is lost. Perhaps that's okay, as it allows the viewer to see the entire squirrel better. The amount of time you spent planning this picture is impressive, but as you found out, you can not entirely plan for anything and everything. I also love the way that the fern on the left is somewhat in focus.