Pretty kitchen. Personally, I'd use subway, maybe in a larger or smaller format than the usual 3 x 6. Use the implements of a kitchen for color, and don't forget fresh flowers and a bowl of real fruit.

I'd be curious to know how you like the two knobs on the drawers.

This is what I have with cream cabinets and dark counters

I love karen's suggestions to you. Think any of those choices she posted would be awesome!

Porcelain subway tile in off-white or marble pattern. Install in a chevron pattern for pizazz. Use light grey grout. Or you could reserve the chevron pattern for just above the range & do the rest in a horizontal running bond. Add a raised border tile around the range tile. Classic, timeless. Lovely kitchen.

I love the look that cvlee12 posted. Really beautiful. I'm a fan of lighter back splashes personally.

Cream 3"x6" or 4"x8" field tile set subway style, then use Cepac Tile's Serenity or Symphony mosiacs - they're darling, perfect for your kitchen, as a new line through one of the subway tile joints, (1 or 3 rows) would be very nice. Please check with your locally owned tile store for Cepac Tiles. Good luck. ;)