Okay, First things first. On the edge of the map and around the lake are alot of mapping errors. I think you should fix them up.
Secondly, The towers entrance is great but the small jumppads on the wall bits will really get annoying in a LAN or something like that. Try to make a bridge to the castle top and fixing up the ground errors. Also WHY the HECK is a grass texture ontop of one of the blocks of the tower. If thats to mark out where the jumppad is, try changing the texture or removing the jumppad. The first time I jumped on that jumppad I flew into the flag pole.
Overall the map has a nice effect. The grass texture suits the house and castle. The errors I found were only minor, Easily fixed so keep up the good work!