First of all, great camera work. I never felt like the camera was in the way or obscured anything important, which is the case with many commercial games and I feel you deserve all the credit for this. As for the theme, I don't really get how it applies to the game. Controls were intuitive, but I would have liked to be able to hold E instead of having to wait for the prompt. That breaks up the flow IMO and makes you pay attention to something you shouldn't have to in the first place.
As others have mentioned, I have no idea how to start crafting. I gathered materials, but I couldn't interact with any machines? I'm confused on this.
All in all a fun game which has a lot of potential, but for the moment it is a bit raw. I would have liked to see the mechanics polished up more than the art. That said, while I may not be a huge fan of the terrain textures, it is a very pretty and polished game and I feel you can go far with this idea. It just needs more "game" in it.
Despite the shortcomings, you did a great job in polishing the game this much in a week!