I have created a 'Levels' system to help when selecting the design type you'd like.
Level 1: Simple nail art features, like a french tip, polka dots, or stripes. 1 colour only.
Level 2: A little more detail than Level 1. Designs can have 1-3 colours, and up to 3 different patterns (i.e. Polka dots on thumb and pinkie, stripes on middle finger, and a french on index and ring finger)
Level 3: Complex nail art, unlimited colours and unlimited patterns. 2D only.
Level 4: Extra Complex nail art, Unlimited colours & patterns, with charms, gems & rhinestones, and 3D Nail art