This is the the itsy bitsy ice palace I made on an old server. It was originally built into the side of a big snowy mountain overlooking a large frozen lake, so that's the sort of environment I'd recommend importing it to. It's very small - not really a palace - but it does provide some shelter and a nice view of the scenery below, thanks to the balcony. Inside are plenty of chests full of supplies, some work stations, a sleeping room, and a doorway you can use to start tunneling down through the mountain to dig for resources or make a secondary entrance/exit.
In the screenshots, I've uploaded both shots of the schematic alone so you can get an idea of its size, as well as shots of it placed into a mountain as an example.
You may use this for anything, just please give credit!
This schematic was made for Minecraft 1.12.2 Java Edition.