I think painting the ceiling is a great idea! It adds and interesting element to the space that you don't see often, or really think about. Most people go for a feature wall, but a feature ceiling would be just as nice. I did a little search on the Houzz website and found these. http://www.houzz.com/au/painting-the-ceiling Maybe they can help give you a little inspiration! Id love to know what you decide on!

My bedroom is part of a large basement area and I used that same blue to do the walls in dado style (half-half). The bottom half of the walls is the lovely strong blue and the top is a soft warm almost-white. The ceiling is white. It looks fantastic and two years on I still love it. I find the colour combination to be very restful despite the fact that it is quite intense. I accessorised in silver, including a silver bed spread and added small pops of turquoise. It's a fantastic colour, go for it!!

I would let your natural elements shine ..match your wall colour to your classic white laminate and be lazy and paint the same for the ceilings so not to distract from your features or you could use your Caesar stone Urban as an inspiration and choose that colour as wall colour..ie go a bit lighter ..since you can play around with the colours as your room has lots of natural light .. Urban is a nice colour..brownish grey.. personally I'd just go white..

I'd paint all the ceilings with a flat ceiling white.