For me, I thought the tree by Marija gave off a stronger vibe of "Miniature tree", and I liked it better than the winning tree. I would have flipped them. But not on anything specific. More on the overall impression left. Marije's tree just stopped me dead in my tracks. The winning tree.. I had not really noticed in my first trip around on Friday, before the awards ceremony.
It is however a technically perfect tree. I would probably have wanted the transition of old stump into the rest of the tree a bit more smoothly transitioning. I do not have the feeling the canopy belongs to the trunk. May have to do with the rough bark at the base and the (naturally) younger branches, something only a ridiculous amount of time might fix. I disagree with the "triangle" statement. All trees are more or less conical in shape, else the lower branches would die of shading. The top is well-rounded which is a sign of age in a broadleaf species. Branches do hang down over time.