What's the question? Are you looking for advice on placement or suggestions as to what to buy? Is the space shown include the dining space or is that not in this photo?

White, blue patterned, or even a bright accent color like red or yellow http://houzz.com/photos/10435177 http://houzz.com/photos/124382 http://houzz.com/photos/44046

Hi Nikita, First and farmost, you have very beautifull coushion on sofa, from where you buy it? You can check the videos of Small budget Big makover first session series in youtube. In One such house in Gujarat, Muninder and Bishakha coloured the old sofa set with whtie (The sofa is like yours) and changed the centre table. Interestingly, the family also had your kind of sofa set and they also want some modern style. The architect duo did not changed the sofa, just changed the colour. Yes I found it in youtube. it is the house of Setu Upadhyay. the link is https://www.youtube.com/watch?v=85GNhyLeVnM Another suggestion is that you have many tables on the room. You can drop few chairs and opt for a single centre table

Light beige (darker then off-white) for both the base and the back and you can use the colour of the textured walls as cushions for the back rest.