I added a few more pictures of others' shelters. The one I slept in was the coldest one - we didn't cut down trees to build it, only used dead woods and branches.
I'm not sure if any of you guys want to do this kind of stuff. I kind want to go back and do it all over again. I'm a cold sleeper and don't like cold at all. But I just keep coming back to winter camping. Strange, isn't it?