Mini PC/Router (Topton/Wooyi) fan holder

I bought a WooYi (similar to Topton) N5100 mini-pc/router and while the temps were basically fine I thought it would be fun to add a fan to keep things a little cooler.  I wired a 12v 80mm fan to 5v via USB and designed this little fan holder/shroud to cool the top and redirect some air into the side vents.  The CPU temps never got above mid 70s under heavy load (which is perfectly acceptable) but with the fan they don't exceed mid 50s under load.