Awesome
I love al the slopes and SNOT you've used, especially the 1x3 slopes on the corners, they look great.
The only things that I don't really like are the slopes on the tree, and you could maybe use more different colors on the rocks, they look a little too plain. you could for example use dark green or sand green slope on the bottom so it looks like there is moss growing on them.
I hope you come to Legoworld next year, so we can make our castle layout even nicer
DNL