French manicure is one of the most beautiful designs, but also one of the most challenging ones. Every line has to be perfectly symmetrical. Here are a few of my rules for a flawless French manicure: 1. The gel application must be impeccable. The gel should be evenly distributed across the nail. 2. The shape has to be perfect. If it's a square, there should be no bulk on the sidewalls and all parallels must be clean and precise. 3. The gel color should be well pigmented, so there's no need to re