Step One:
Cut craft paper (newspaper, etc.) to the size of your picture frames so you can visualize your wall.
Step Two:
Put toothpaste on the picture frame brackets, remove the craft paper from where you want to hang your first picture. Hold your picture frame up to that spot and push against the wall. This will put toothpaste marks on your wall where you need to put in the screws.
Step Three:
Continue until all frames are hanging.
Much better! Just need the letter "D" up there under the cityscape.