I like the looks of this level, but the gameplay is a let down to me. Spoiler 2 moves of a hidden slider is very little gameplay for such a big level, and because it's so hidden it's not very good gameplay. If you would use all the architecture much more, this could be a great level.
Just nice visual design in my opinion... as @Block builder said the game play could be better. Thanks for sharing!
I probably have not yet been able to figure out the designed solution. Spoiler The tripping-on-air trick had the effect that B landed into the water and he could then straightaway walk to the tower with the win