By now you probably know that Camilla and I are huge fans of the gals at Pixiwoo. Sam Chapman, one of the sisters that make up the dynamic duo, has her own line of high-quality make-up brushes under the name Real Techniques. Sam has been a pro make-up artist for over 15 years and, together with sister Nic, boasts nearly one million YouTube subscribers. People like me eagerly await their twice-weekly uploads for great make-up tutorials and product reviews. With all this experience and beauty knowledge, Sam’s range of brushes was always going to be fantastic and I have not…