like the high key, but not the composition. I think a tighter crop to focus the eye on one of the side branches, perhaps the one hanging down in the middle, would have worked better.
I don't know if you were attempting a silhouette through your post processing technique, but it came out with a red band around the outline of the branch. I am assuming this is the inverted chromatic abberation which means that this probably has some blown highlights which you tried to compensate for with the posterization. Unfrtunately, I will be one of your low voters.
Well done, you took a very boring subject and made it interesting... I love the black on white, and the simplicity of the shot is a nice touch... I'm bumping from a 6 to a 7 upon viewing for the third time...