Embrace the arches and keep it light, but add some contrast. Paint every wall with an arch in it fresh white, all ceilings too. Paint the adjecent walls a soft color. For example; when you keep the kitchen tile, you could paint the walls above it a soft pink or mauve. I see three open areas, so you could divide those with three soft colors and white inbetween. Keep most lights simple and functional, uplights will enhance the arches, glass pendants will add warmth. And I think a soft olive or sage green is a great color for a living room.

Stay with light beige for your main pieces like the sofa and chairs. Add in other colors and patterns with pillows and throws. Keep the drapes simple and hang them high as possible (with a traditional height ceiling not a vaulted). It would help to have pictures and to know what style of furniture you prefer--modern, traditional or a mix.

I wouls get rid of 1/2 the pillows on the sofa too matchy add an area rug that is bright with some other colors to use for accents you have IMO too much brown so I would do blue drapes in the DR take the cloth off the table and add a blue and orange glass bowl for a centerpiece filled with green apples get some pillows in green and orange and a big piece of art work for the wall above the sofa and maybe a mirror on the DR wall and a fabulous light fixture for the DR an arc lamp behind the sofa in the corner so it comes out far enough into the room to light a coffee table.

Hi Raghvendra! What I understand is that you require ideas for cushions and also for the wall. First of all, decide on the theme which you are going for.....modern...European....etc. Your furniture looks a mix of the two. As such a full view of the room would help one to decide on the best combination. Also the furniture material esp sofa will decide the texture of the walls and the cloth you will use for cushions. Also the size of cushion will matter. Personal choice of the color is best. I always go for rustic looks which matches most & mingles with all set ups. It give a look of luxury too. Pl consider all these facts before you decide. Hope this will help you. Looking forward for a happy home!!