I would consider something light with some other colors to mix in like this. http://t.homedepot.com/p/Silestone-2-in-Quartz-Countertop-Sample-in-Mont-Blanc-SS-Q0220/203674451/ I like the wood paneling and would paint it a white with a warm feel to it. A white will reflect a lot of light from your large window. I wouldn't paint the window casing as it might tie in better with the rest of the house. Good luck!!

Thank you. My husband and I chose the tile (per recommendation at the tile store) and used a professional tiler (per recommendation at the tile store) for the install. It isn't a flip. This is a family home that we purchased and spent a year renovating—not DIY but with all professional hired help and a contractor to oversee the job. This tile person wasn't hired by him, though, as he was happy to use the person that we were told was very good by the tile store…. My heart is sinking. I absolutely hate the idea of retiling the shower as there is matching tile on all walls, including shower. I'm hoping there is some other idea out there that will help. I do personally think the tiler should have informed us if the tiles we supplied to him weren't suited to be mitered…we discussed it even before tiles were purchased and he didn't mention any specifications. I'm just worried now that if we put it on him to fix it, we'll end up with a bigger mess...

Stacked splashbacks always look wonderful!

Maybe a cream so the eye is drawn to the interesting table pattern and not on the splashback?