Hi! Let's learn about your brain. Your brain has two sides: the left side and the right side. The right side of your brain helps you be creative. That means it helps you draw pictures, imagine fun stories, and think of new ideas. So when you color a rainbow or imagine a magical land, your right brain is working!
Also, your sentence needs a little fixing. Instead of saying, "the right side of your brain does all things creative," it's better to say, "The right side of your brain does all creative things." This makes it sound clearer and easier to understand.