Pairing images that have show similar forms is a great way to create a theme for a wall display. Take a look at the long pyramidal form of the Eiffel Tower in this canvas, matched with a similar upside down long pyramidal shape of the champagne glass. These similar shapes create repetition and unity.
DIY - Salvage Door & Drop Cloth Ruffled Curtains (separate tutorials). FORGET ABOUT THAT...what I really like is the DESK! This gives me an idea to take an old table/desk, paint it, and then go to Hobby Lobby and buy some metal corner brackets (they have some gorgeous scroll ones in all different sizes...but wait until they are on sale , which is about every other week) and put in corner of leg/desk top. It would really class up an old desk/table.