Hi just a quick question. I already have a free hand nail art certificate, but was thinking of adding airbrushing to my services. I have just bought the gina wallace dvd and thought I'd like to have a go. Do I have to go do another course or can I just buy the kit and have lots of fun practising. will I be covered by my insurance from the nail art certificate I already have? (Im thinking free hand nail art is in a way airbrushing as well) any advise would be great. do you have seperate certificates for free hand nail art and airbrushing?