Larger airbrushed areas are better done with the external mix. Since with the larger dot pattern you are able to spray more areas in less time. Airbrushes also come in single and dual action. This refers to how the airbrush functions. With single action only the air is controlled with the trigger. The trigger will control the air and the amount of paint that comes out is determined by the needle adjustment on the back of the airbrush handle. Caricatures are seen in a lot of art and airbrush art makes for creating some really interesting caricatures. Kent Lind will show you how to create cool caricatures in this approximately 70 minute video titled, How to Airbrush Caricatures. This video will go into all the details that you will need to know to create your own airbrush art caricatures. She is there to show you how to do airbrush art, help you quickly spot your mistakes and learn how to advance in your techniques. Shanteau is truly a gifted airbrush artists and the chance to learn from her will greatly benefit any artist from beginner to advanced. Her styles and techniques are unique to her and she is openly offering to show them to others who truly want to learn airbrush art. A damages needle can be disastrous to your ability to create high quality art, because if you are unable to straighten a bent needle back out or the needle should break completely you will not be able to finish your airbrush art until you can get a replacement. If you do end up bending your needle you can try and straighten it with either pliers. This will give you a feel for stencils as most beginning airbrush artists will use stencils to create their airbrush art. Practice using stencils on a cheap surface and still using your black paint. You will also gain knowledge from trial and error on how to remove stencils without disturbing the paint. You get what you pay for and when it comes to airbrush art you need to go with names that you can trust. A lot of knock offs also will give for a harder time finding replacement parts when they tear up. Knock offs will tear up quicker than the name brands. So save yourself the hassle of being in the middle of your airbrush art project on your automobile and find yourself unable to get replacement parts for your airbrush equipment.