You can do this really fast, and very effectively with Fresco Chalk effect paints, particularly the opaque ones really fast. But if you want to take things the next level, then you'll want to introduce some translucent shades for depth, and you need a sanding block to sand back sneaky peeks to previous layers. I feel like I say quite often 'this is my favourite' product, technique etc all the time...but it is fair to say, this is one of the most frequently used techniques in the last 12 months on all kinds of projects. It's great onto wood, its perfect to use several different stencils on the same background, and its awesome with fine detail or blocky stencils, in other words, they all work well for this!
So go and check out this video, a nice blue and orange combo it is too!