Manvisudan, I'm not sure what you mean. The walls above the sofa? If so, I think your should go with the richness of Indian art -- something like this wall hanging would be beautiful. I'd hang it horizontally. Look around for something that picks up both the lavender colour of the walls and the red of the carpet. It could be a rug, or a printed or painted cloth. Mount it on a rod and hang it with the lower edge about 18 inches or less above the sofa. (India is probably on decimal? 45 centimetres or less. Whatever feels comfortable to you.) Otherwise, look for those wonderful wooden wall art carvings produced in India and other countries in the east . You could hang one big one, or three small ones in a row.

I'm not against colorful homes. There's bright, and then there's too bright. I wouldn't go with persimmon for the whole house. The photo you provided has lots of white trim which offsets the orange, but your house doesn't have that much trim (unless you were planning on adding some, which I think would look good no matter what color you ultimately choose, but even so, I wouldn't go with persimmon for the whole house, as it's still too bright). To repeat what @nwduck said, the other homes in the neighborhood don't appear to all be done in the bright colors, and so yours would stand out too too much. I like @deco's idea of the bright door, if you really love a bright color. For the rest of the house, any more subdued color would be fine, along with additional trim around the windows, and assuming that your siding color coordinates with your roofing color.

Easiest is just to paint the walls. Stay away from purple and replace your bed spread. Here are some ideas using orange headboards: A light beige wall . Note that the bedspread uses the same colors as in the room ( so brown , beige, orange) or A fun paint job- brown and white stripes. Again, the bedspread uses the same colors ( white and brown). OR A brave color choice- orange and brown pair beautifully with a deep blue or aqua.

I think all white will be a very nice scheme and the differences in the white will just add subtle difference. In the above pic the walls are more white than the table, but mixing with the light tan colours and greyish tones makes this gradient of whitish tones work well.This room is all white as well with the furniture and walls, but adding the punch of the other colours masks if the whites are slightly different as the bright colours become the focus. The walls in the pic below 'read' a very pale grey so that would be an option, just ensure that it is a whitish-grey and not muddy or warm. I would choose the sofa colour as your main colour and accents to match from there.