Here’s an app from Pixels.com / Fineartamerica.com that will let you preview artwork on your wall. All you need to do is print out a template and stick it on the wall you want your artwork to go. Then fire up the app, pick a work of art and aim your device at your template “target”. The app is available on Android and Apple stores. For more details on the app, here’s the link: http://pixels.com/app

Enjoy!