I've been painting a bit with the Createx Airbrush Colors. They are cheap and come in many premixed colors which is a big plus in my opinion. Great for starting out, but has left quite a bit to be desired. So, a while ago I ordered som De Beer WaterBase Serie 900 automotive paint.
I did a quick test with the red and the black colors and the results were excellent! Much, much better atomization than with Createx out of the bottle.