Colors can be mixed to create your own unique color for your artwork. When putting airbrush art onto an automotive use acrylic enamels. These are not only cheap but they will not clog up your airbrush like lacquers. Also make sure that you buy mixed colors and avoid any tinting colors, since they do not contain any driers in them. You just took two things you seen incorporated them both together turned them into something else and now you have a unique floating cloud playground. Inspiration can also come from books as well. Go to the library and check out some art books to help you get some inspiration to get you going again with your creative design. The best air compressor to use is the Iwata Studios Series Silver Jet Air Compressor. While this one is the best one you can go with any small compressor that has an 18 psi. Preferably get an air compressor that will adjust between 10-18 psi if you do not go with the Iwata Silver Jet. To do airbrush art on nails you will need nail art stencils or nail art masks. Take on a workshop that teaches micro airbrushing and you can learn with some hands on projects under the supervision of an expert. Working with an expert can also mean signing up for some private one on one lessons that will give you more direct attention from the instructor. This could give you a little bit more of an edge over taking a work shop where the instructor has many people to teach at one time. In the UK airbrush art workshops are being offered by Organic Image with instructor Beej Curtis. Beej Curtis instructs on airbrush art in 1 and 2 day classes covering different aspects of airbrush art. Beej Curtis also offers private 1 on 1 lessons for anyone wanting to learn in a more private setting. No matter what material you go with make sure that you remember to cut out your areas slowly. By taking your time you can make sure that everything matches up the way it should. If you are doing a stencil for say a dog then you would want to take your time and make sure that the eyes were the same size, the nostrils were cut out shaped the way they should be and so on.