There is some potential, but it isn't utilized. Please take the following tips as constructive critisism. Spoiler Better to put balls on horizontal pillars, rather than a flat surface. A red herring can be a nice thing, but use it carefully and intelligently. The tower in this level is just silly. The worse thing about such a big red herring, is that the required gameplay is a complete let-down compared to expectation. So make sure considerable gameplay remains. Why does the ball hit the win? It's easy to make the ball a connecting element by which B can reach the win. That's more fun. I think that the level could look prettier, but that's highly subjective.
I think that this level could be a very good one...the advice of Block builder to put the balls on horizontal pillars would revalue this level significantly. I like the concept, the idea and the design of this level very much and that there are no tricks needed to win...please optimize this level only a little bit and public it again...then it would be easily worth 4 ore 5 stars ! I hope you will do it