With an open plan kitchen, using your splashback tiles to display art is a great way to introduce colour to your area.
In my opinion you need something that is a real feature. Your bench is lovely, but still lots of light colours and white. Go for something bold and not boring and bland! Glass and subway tiles are way overdone at the moment.
Here's a couple, both very different. I think we are so spoilt for choice, I can change my mind every 10minutes. I have no idea how I'm ever going to make up my mind. I love glass splash backs as well. One thing I'm certain of is I like reflective, I love the way light bounces off. So many tiles these days show different colours in different light. Might be good to bring some samples home. Good luck Sarah, let us know how you get on.
I love the idea of a 2 inch hexagon. Maybe even if you just did that above the stove and then used a classic marble subway? Gorgeous
Kitchen looks great, is that Smartstone Statuario Venato on the island? We have worked with mirror alot if you have something worth reflecting back into the kitchen. Otherwise we love glass splashbacks. Perhaps white to colour match cabinets. Subway tiles are popular but it does set a certain tone. Smartstone have a huge gallery online so you can see what others have done with the same tops. My client has used a mixed marble on her splashback. My other client using the same stone has done the simple white subway.Great job!