We have installed wallpaper behind glass splash backs on many occasions without any problems, the glass usually being attached by a thin beading of clear silicon applied around the inside perimeter of he glass, then fitted the day after the wallpaper install. MOST importantly the INSIDE of the glass be kept perfectly clean on install as even fingerprints will stand out

Rellish, did you have trouble getting matching grout and silicone? We're about to use the exact same tile in our bathroom. Also, did the tiler have any trouble due to the embossed pattern? Our builder thinks we need to install the tiles on top of the vanity as the tiles are not flat and it will be difficult to get a good, clean seal if the wall is tiled first.

We had a guy who printed posters print the photo and stick it on the glass for us (to make sure there were no air bubbles). He delivered it to the glazier who was installing the splashback. There was so much interest as it sat in the showroom, the glazier then started offering glass with pictures actually printed onto them... If your wall was smooth, you could put the 'poster' print onto ther wall as another option.

A great choice for the basin, the tap seems difficult to turn on and off, thus I would probably go for something different like the three choices below. My Vote is off-center no splashback, however, I would increase the off-center to make it easier to reach for children and the elderly.