Wow! So simple, yet so much effort, at first glance I didn't notice it was a gif file until further analysis xD
The color choices to me are perfect, and you have skill in sketching objects which some people struggle with, and that's always a good sign. If I could suggest any improvement it would just be to add a little more vibrancy, it seems too musty for the scene you created that's all. But hey thats just my opinion, great work I can a see a lot of meaning and skill with you!
;3