For me the composition felt a bit confused or cluttered. That's often where many of us will differ in our opinions. I tend to like to see some breathing room amidst the various forms. Here the form of the tree really was difficult for me to make out due to the choice of parts and the arrangement. It was such a significant element within the MOC that it tended to dominate the scene. Some good effort put into the creation, nonetheless. Score of 3.
Maybe I'm missing what Blake saw but for me, while it was a REALLY nice moc, it just didn't quite hit that five mark. I was teetering between a three and four and decided that the tree was worth that little bit extra. 4 points. ~ Chris.