I need some wallpaper...I think

So we have a small townhouse and we are in the process of finishing up remodeling our downstairs. We just put in new french doors and we have a brand new kitchen, with gloss black cabinets, brushed aluminum back splash and greyish countertops. We have a wall at the back of the house that is shared by the kitchen and the living room area that has the french doors leading out to the back yard, and I really love the idea of putting wallpaper there to get a bold graphic black and white punch when you walk in the house (front door is on the other side of the house and would face this wall). We are painting everything else simple with a neutral color, probably grey, and we will get a pop of color with the couch (maybe red or something really bright like yellow). Annnnnyhow... here are some wonderful wallpapers from Walnut that I like - the first might be my favorite, but I really love all 3. How cool is the wallpaper on the ceiling idea?

OK, I am going to go searching for more wallpapers now.