Glass would look good - give you a little reflectance without mirroring everything on the worktop. Also could be a subtle way to introduce some colour. If you use clear glass with screw back type fixings, then you can change the colour now and then by painting the wall behind if you're nervous about colour, or think you would want to change the look now and then. Another option is a stainless steel, which again would add in a little light reflecting but in a grey tone that would work well with what you have.

I agree. When we moved in to our current house the previous owners had installed a narrower hood (I think perhaps 60cm) over a 90cm range. Aesthetically we hardly noticed, though we eventually changed it for other reasons. And with your suggestion the hood would be just 5cm shorter on each side. That sort of distance is not particularly noticeable to the eye, especially once you are just living in the space and no longer thinking about each and every decision. Definitely a stainless steel hood. You'll need to think about the width of your splash back. will you go 100cm to cover the range? Or 90cm following the lines of the hood? I don't think it matters too much. But my suggestion would be that if you go with a splash back that is 100cm (w), stop tiing short of the hood, so that the difference in width compared with the hood is less noticeable.

fran11home the tiles are made by Marazzi these particular ones are their treverkever sand ones though they have a full range on their website. In the UK I ordered mine from CTD tiles

And could you post your kitchen design, as the amount of splash is important (and daylight, upper cabinets, etc).