How to create a focal wall via Emily Henderson

Here's a great "how to" video on how to create a focal wall with art. Some awesome rules to keep in mind, like the 2/3 rule. She also has great tips with the gallery wall like filling the entire wall, having your larger piece in it off-center, and using different sized pieces. What do you think? Did you find it helpful? She's one of my favorite designers/stylists.