Hobby Motor Powered Cooling Fan

This is my first design so please give me some feedback as I will be modifying this and updating this. It has one hobby motor which powers it and is quite simple. I am yet to print this but I am currently testing the design. Once the design is finished I will update this.

This was designed to run off a small hobby motor. DC 12V 10000RPM Mini Magnetic Motor for Smart Cars DIY Toys. Can be bought from amazon. I am currently looking at replacing it with a higher torque motor. The current motor