Hello Fred here. I have been airbrushing for a little over thirty years and there are several things to remember. 1st don't get in a hurry , 2nd practice, 3rd practice and 4th did I mention practice.
Also, when you feel you have developed your talent suffiecientltyxxxx(well enough) get rid of the air compressor and get a 20 pound CO2 bottle. The first one may cost $75.00 or so and when it is empty take it back and exchange it for a full one for less than $20.00. The advantages are, no noise, no moisture, and more control over air pressure at the tip. Need any more advise feel free to let it be known. Fred Amos