AndreasK

Liquid cooling generally uses fans. The term you're probably looking for is Air Cooling. Whether or not it's the optimal solution depends on the situation and what features you're looking for. Liquid cooling often allows for more surface area in the form of radiators mounted away from the socket which can allow for better cooling but often costs more. 

It looks in your picture like your pc is sitting up close against a wall.
If it was me I'd move it out from the wall a least a foot.
 
I saw a video on one of Linus's channels about case fan placement and getting the most out of them. If you search it will probably come up.
Air vs Water cooling
They got videos on that too.
 
I like air cooling myself but hey whatever floats your boat. ?

The scores are the same. His is actually a tad higher if you are actually paying attention. 

Also says valid Incase you didn’t see.