Art always works .As for what's in for 2015 it only matters if you love what ever it is and are now willing to change it out for what is in vogue next year . Colors for pillows are what I usually use to bring a space up to what,s in but my basic style and design stay the same for a long time.

What soft furnishings do you have. You could pic out one or two colours as an accent colour and use that as your Base for the curtains. I currently have cream hessian walls and have a duck egg blue and chocolate curtains. I'm currently making matching Oxford cushion covers for the settees . If you can't find what your looking for ready made buy the fabric and have bespoke curtains made for you.

I select these colours with the help of other houzzer and expert professional advice and discussion. I also got help from colour paint catalogue. Is it looking good or not? Is there any problem with these colours and their combination. Please guide me in this regard.

Saranya that's a bold choice. You may want to tone it down with aqua palette.