Dave,
I really like the picture.
I am not an expert, but I think you did the right things - just a little bit too much. Too much red and black, too much contrast, and it looks a little oversharpened. I know one can get carried away in the process sometimes ...

And what did you adjust on the background? Just levels? I think that was not necessary.

Cropping is good, unless you want to crop really tight, so that you can't see the end of the branch.

just my 2 Euro Cents, let's hear the experts :-)

Arnt