I'm working on my submission for this course as we speak! This turned out great, dude. Way to go above and beyond by utilizing textures and materials to polish off your models.
Gosh this is great! If you want to up the ante, I triple dare you to learn how to animate the materials as taught in this bonus lesson from the earlier version of the fundamentals of materials course! Given how good your room looks, I think it's something you'd easily be able to do!