Research & Development
The fantasy aspect shows in the research and reference. Closer detail from real world reference is a bit lacking in the Documentation, but the end results look nice and stylized.
Creative Art
The scene reads well, and looks like a nice scenic, stylized turntable. The scale gets maybe a bit lost with the stylized decision, but the end result with nice contrast in color usage makes it very pleasing to look at and gives a magical feeling along with particles and gradating color hue and value. The gems also add to the magical feeling. The bushes and grass also add nice feeling, separating the structure and ground from each other.
Technical Art
These are definitely game-ready assets. It was nice to read about tackling the particle system, it really adds to the scene. The lighting works well, and the renders look nice and crisp. For Stylized assets and scenes, I believe the goto workflow really is still Zbrush paired with Photoshop or Substance Suite. Scales might be abit funny, seeing as how table and chairs are the same size as the door in the middle parts, but that's probably a style decision, right?
Documentation
The font is a bit hard to read, but the thoughts have been written very well in a brief format. I would have wanted to read a bit more about thought processes, but apparently your time limit prevented you from doing that.
Final Presentation
The quality stands out, the color and shapes read very well and it feel very magical as an environment.