I think I would start with the furniture, in terms of space, given that you said it was not a large room. I would check sizing of the furniture and room, to see what would work with the bed, a couch, the wardrobe and any other furniture that you'll be using in the room. From there, I think I would start with the bedding possibly as a starting point for the color scheme. Perhaps you could find bedding with a print you like in the colors that you like, and take from there, the colors for the rest of the room. As well as a sofa bed, another option might be a daybed that could also do double duty as a bed or seating. I think painting the furniture a bring pink would work well against the white. And then take it from there with whatever you've decided to do in terms of the overall color scheme with pink/white/silver/black or pink/orange and white for the walls, perhaps something like a gray as well with the second color combo. Good luck!

We are planning to use a dark taupe on one side of the lounge (left wall as seen in plan), and the same dark taupe in each of the bedrooms (1 side only, wall behind bed). Is this a good idea or would u prefer using a diff colour for bedrooms? Thanks

this room has one large window which takes up most of the wall facing north.quite a bright bedroom. would it look funny having a green, black and 2white walls? I just want to tie the black furniture in with a black fixture somehow. maybe you have other suggestion?

OK - I'm a beginner here on Houzz so my opinion isn't worth a lot but here it is: the room is a bit bland and lacking in character. I think you have to find some pieces you really love to bring it alive. All the suggestions are good for widening your horizons, but ultimately, you need to find things that matter to you, because it's your home and not a magazine photoshoot. That said, if it were me, I'd throw a couple of small, colorful rugs down, and put either one large painting or three smaller ones over the bed - not in a line but at different heights - to break up the binary look. I'd also put something on the wall above the heater. Then, play around with a few cushions and maybe a quilt that picks up some of the colours in your artwork.