I bought the retail version about 2 days ago and have been working on this ever since. This is my first build ever so go easy on me.
Basically I wanted to build a snowy castle so I chose the slopes map and found a nice flat area beside a lake to build. So far all I've got done is some walls, a jail and one level of a guard house.
Here is a view coming towards the gate:

Above the gate looking over what will be a town inside a wall:

Behind the wall looking out with labels:
UPDATED: Replaced fence type bricks on wall with something I made:
UPDATED: Finished Guard House:

Guard House entry way:

Fireplace in Guard House 1st Floor:

Dining/Meeting Area in Guard House 1st Floor:
UPDATED: Sleep Area of Guard House 2nd Floor:

Pathway in wall:

2nd lvl of Tower:

Ground entrance to Tower and entrance to Stocks:

Inside Stocks:

I hope to have the guard house done soon, I will update as I go.
Ill also attach the blocks save for the slopes map.
EDIT: The area where I built is kinda hard to find. Load the blocks first then turn around till you see a vehicle spawn. If you head down the mountain to the right of that spawn you'll see the lake.