Thank you everyone, your thoughtful advice was very welcome. I'm attaching a photo as its all finished. I selected Olive Reserve for the splash back and painted the wall above it the same colour. As its a big room with lots of light and a large window it doesn't dominate. The glass is so easy to keep clean and I love the way it reflects the garden and light. Have to say though some people are stunned into silence when they see it, but as the cupboards and bench tops are quite bland I knew something bright was needed

Awesome!! Actually macymacmaples, the mirror will date more than the white glass. My cupboards will be white handleless polyurethane...and I'm gonna choose Ceasartsone Calacatta Nuvo as my benchtops :) hagan - My painter (which is my cousin) lol, also wants me to do vivid white ceilings..but I'm thinking of just keeping it the same and doing Natural white ceilings too as I don't like contrast...I prefer it to all blend....Dunno yet tho, will keep u updated ;)

When picking out colors I did have color consultant helping me and had the glass splash back winter calm picked out but now I would rather a tile. I was originally going for a sleek all white kitchen but decided to add the washed knotty laminex to the overhead cupboards but keep the rest white. I am having similar tone vinyl plank flooring through out kitchen and family room area. I was still thinking of a white tile???

The issue is the water needs to be evaporated out, otherwise you are going to grow mould in the gyprock behind the splashback. Do not put glass over the top and for the love of god do NOT employ the person who suggested it. They sound incompetent. The splashback needs to come off and be redone. The gyprock needs to be fully dried or replaced.