Here is what our living room looked like shortly after we moved in. Don't you love how the fireplace extends to the top of the vaulted ceiling? This is the view while standing in the kitchen:
So, back in November when I was really diggin' the chevrons I came to the conclusion that some zig-zag artwork would work. I drove out to Michael's to get a large canvas (36" x 48") and some craft paint. I decided to do yellow because it's a pretty neutral color without being too contrasty to the white. My other thought was grey, but the walls are grey and I didn't want the room to be too monotone.
I made a stencil that was approximately 12 inches wide and 4 inches tall, then taped it off with painter's tape so I would have a smooth line for outlining the chevrons.
I started in the middle so there would be a centered chevron (I'm a type A person and everything has to be balanced). I measured along the way to make sure everything was straight and even.