Beautiful clean modern kitchen! You have a great opportunity to put your personal stamp on the space with a unique backsplash. As you've heard already there are some different approaches. I'd probably place the backsplash up to the wall cabinets and up to the base of the hood. Then continue the backsplash at the same height (18"?) behind the sink. Then place an inspiring colorful picture above the sink to break up the wall. Here's a picture with pendants that aren't too obtrusive. Having multiple levels of lighting at different lumens makes a more inviting feel to the space. I couldn't decipher your flooring, but you may also want to consider adding some nature elements like a type of wood flooring, wood stools, etc. Good luck! If you need software to plan out materials check out our Home Designer software: http://www.homedesignersoftware.com/

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!!

Also take a look at Room and Board....they have several tables with different wood finishes or wood/steel/metal bases and a good selection of various tabletop materials. Also if you prefer a wood table, an area rug underneath the table could also help to break up all of the wood too.

The all black kitchen looks scary as. Maybe because there's no lightness in there at all.