Mike, I would post that question over in the painting section. You will get a much better response from those who know more about it than I do.
When I bought my first air brush, I didn't know what I was looking for. Basically I read an interview from the guy who painted up the motion picture Enterprise and bought the air brush he used. It is a good one, but what I have now is better.
I am using the compressor that came with the airbrush. It is a paasche model. It works well, but I can see I might need better in the future.
Thanks Micheal, she does remind me of Mom quite a bit. And she is soon to be my step daughter!