I like the shot but the branch in the upper corner and the
messy portion at the left side directly
troubled me. My eye also keeps being pulled to the bigger tree at the side. Contrast-wise it stands out but maybe it is positioned a bit too far to the side.
Also, why not cut it along the lines and in that strengthen them? It of course directly is a different shot but I find that when using a format aligned with the direction of the subject, it often makes a stronger shot.
Something like this:
It's a matter of taste however.