I love trees and I like this tree, however, it is too dark; especially when contrasted with the background which is beautifully lit. And that is a problem, when the main subject is not well lit and the background is, sort of like a model or flower that needs fill-in to complete the lighting. About the dark shadows in the right foreground, nothing wrong with them if they are strategically arranged in the picture space and do not compete with other elements. I find in this image, the dark area is too pronounced and draws too much attention to itself.
JMR