Curved Printrbot Play Fan Shroud

Printrbot Play came with a very inefficient fan cover that leaks tons of air flow everywhere. I have been struggling in getting good quality prints because of that. For example, when printing a pillar of 10mm diameter, the side that is not facing the fan is not sufficiently cooled, resulting in much worse printing quality.

I like the original look of the PLAY, so Fan shroud add on is pretty much the only option to solve the cooling related issues. I tried some designs, and based on which I it