Shazi,
with due respect bro I think u painted the wrong wall,
you have painted the narrower wall a dark shade and the longer wall a light shade, so u r attracting attention to the narrow wall, making the room look small, in a room of this size, if u were to paint the longer wall dark and the shorter one light, you would pull the eye to the longer dimension making the room feel larger,
also u have used a very stark contrast and not related the colours,
in my opinion you need to relate the colours, i.e. use the shade of blue, thats fine, but instead of using white use a very light blue, that way the colours will have more harmony, and make the room look more uniform, the existing colours are too stark and rather than creating focus, you are dividing focus.
These are just my humble suggestions, at the end of the day, its ur room and u do what u want with it.