Above is the original wallpaper design, Birds and Butterflies by F. Schumacher, which I have admired before and thought would be lovely for a child's room. Shannon liked it too, but decided she'd rather invest her time emulating this look herself than invest in the cost of the wallpaper.
Armed with her Sharpies, some paint and, apparently, biceps of steel, Shannon got to work transforming her plain bathroom walls into this stunningly beautiful rendition. This isn't a d.i.y. we're going to try ourselves, but we sure can admire it.
Shannon Berry is an artist and designer and you can see this project in progress here and get a better idea of how the bathroom turned out in the last photo here (we can't wait to see her final bathroom reveal!)