Hello Aurelie: Im Luis from www.dulcesilvita.com and I teach how to paint with airbrush. The most important part is the power of the compressor. Would be good if you can try one in a store to see how strong is the airflow. Has to be doble action airbrush so you can control airflow and amaunt of color. Once you try airbrush you cant stop, you can use in cookies, cupcakes, cream, fondant, chocolate. If you have more questions, let me know, but you have to be patient with my english. Regards from Spain. Luis.