I put all of my assets into UE4 to build up my level. I also used assets from the marketplace to add details. I struggled the most with sculpting the river. I had to carve it a few times to get it to look like it was bending through the mountains. Then, I painted around the edges with a dirt material that blended pretty well with the grass material. Then, I added some rocks from the marketplace. I also had some trouble constructing the shed. It took a while to get all the assets to work with a slanted roof. I added some simple mountains and trees behind the landscape to add more depth. I have to add in some lights in the structures, but after that, it should be pretty close to done.