There are many examples on houzz of contrasting counters for perimeter and island. For example butcher block on island and stone on perimeter or a solid color on one and something with movement on another. I would only mix two stones if one had movement and one was fairly solid. The stainless on perimeter and something else on island sounds good to me. Here is a pic of stainless counters with what looks like a stone breakfast bar. (I hope I understood your question right). http://houzz.com/photos/3137660

Teal sounds beautiful for your splashback, I love vibrant and bright colours in the kitchen - you never see them enough! I think your worries are right as well, dark carpet and a dark bench would be too much darkness - a lighter benchtop would work well with the other colours! Marble is a classic for benchtops, but depending on how you did the wood, it wouldn't look fake at all! What did you decide on doing?

Get rid of that bulky corner pantry because it dominates the entire kitchen visually and floor space wise. A well designed cupboard pantry flat against the wall will hold all you need and free up floor space for a larger counter/bench or possibly an island if you wish.

Before jumping into the design of your new kitchen, there are a few important points that you should carefully consider and get expert advice on. Viran has compiled a list of 5 things to avoid when designing your new kitchen and has lots of ideas to help you out of any tricky design situations. 1. FOCUSING ON THE LOOK OF YOUR NEW KITCHEN BEFORE YOU CONSIDER ITS FUNCTION We see a lot of people focus on having the right style of bench top, thinking about what splash back to have or even having their minds fixed on a handle-less look without first getting the functional design and layout of their kitchen confirmed. I understand why people do this as this is the most exciting part of the kitchen renovation process and it's what can set your kitchen apart from others. But this can ultimately cost you more in the long term if energy and thought isn't put towards a good functional design for the way you and your family use the kitchen. You can't change the design of the kitchen once it's installed, but you can change the bench top, splash back or even handles in the future at a fraction of the cost of redoing a whole new kitchen. This is where your design consultant is invaluable as they work with you to gain an understanding of your current pain points and then they work to achieve the best possible design within your allocated budget. 2. INCORPORATING A LARGER PANTRY AT THE EXPENSE OF THE OVERALL KITCHEN DESIGN Just because you may have a large corner pantry or built in internal pantry currently doesn't mean you need to, or should incorporate another one in your new kitchen. There are now smarter storage solutions on the market such as the Blum Space Tower or base drawer units which allows you to maximise storage but achieve more benchtop space or incorporate larger appliances into your new design. 3. PURCHASING YOUR APPLIANCES BEFORE YOU HAVE MET WITH YOUR DESIGN CONSULTANT By doing this, you could be limiting the design possibilities of getting a much more functional kitchen based on your current pain points and how you and your family like to use the kitchen. It is always best to have an idea of what size appliances you would like to incorporate and discuss this with your designer but I suggest you wait to buy any appliances until you have seen and discussed a potential design concept. Kitchen Mania works closely with Harvey Norman Commercial division for appliances and in many cases can achieve a great result for their clients when it comes to cost savings on appliances. 4. NOT ALLOWING ENOUGH WALK-ABLE/WORKABLE SPACE By not allowing enough circulation space, you can make your kitchen feel cramped and not workable. You need to allow enough space for 2 people to work comfortably in the kitchen and for appliances such as the fridge and dishwasher to open without any obstruction. To allow enough circulation space it is recommended that you have between 1200-1300mm minimum of space between benchtops, in smaller kitchens I wouldn't go less than 1000mm of space between benchtops. 5. HAVING A KITCHEN ISLAND WHEN THERE JUST ISN'T ROOM A kitchen island is a great feature and very functional, but if your space is too small it is best to forget about this option rather than try and squeeze an island in and realise that it affects the flow of your kitchen and its functionality. In most cases it is best to incorporate a kitchen island when your room allows for at least 1000mm of space on either side of your island for traffic flow.