the 3rd photo of the tree wallpaper, would be perfect for my foam board idea...

I've been noticing amazing wallpapers nowadays. I was kind of against the idea of using it, now I'm starting to change my mind... but the clean freak in me, who likes to change all the time, says, no don't glue it to the wall, glue it to a foam board and nail that to a blank wall... to Wallpaper or not? I'd probably end up with 10 layers by the end of the year...