Make sure that the pic you are trying to add is in jpeg format.

Nope. Grrrr.

Okay, generic advice:

1. Decide (broadly) on the the kind of living room you want it to look like. Try searching "formal living room" and "living room" using the facility provided above, and collect pictures that you really like in idea books. Don't waste time with anything that doesn't make you think "Ooh, I really like that". Paging through decor magazines can also help you fix your own, personal idea of what you want.

2. Analyse the pics you like best. Modern? Traditional? A touch of cookiness?? Or conservative? Are they cool rooms (grey, white, blue, blue-greens ... like that) or are they warm rooms (cream, gold, beige, rust ... like that). True to any particular style or eclectic (mixed)? Are they airy or cosy? Do you like dark wood? Light wood? Metallic furniture (usually expressed in coffee and side tables). A touch of the ethnic of some culture or other? Do you see favourite colours in general emerging?

3. Consider what you already have that you want in that room. It might be a piece of furniture you particularly love, it might be a painting.

Come back and report to Houzz folk what you have found out about yourself, and see where we can go from there. I mean the "report to" a touch satirically, of course. We can be very bossy.

Here is the living room. The furniture in it is the current owners. I'd like to add some curtains (hung high) to the windows, I may even white wash the fireplace, the walls will be light grey, the trim white. I am just not sure what furniture to add. Should I add a formal couch, a chase, chairs? What about the walls?

Any help would be greatly appreciated as decorating is not my strong suit but I'd love to make this house look beautiful.

Thank you in advance!