Working on the Living Room

My living room/dining room is one of the last rooms in the house that is yet to be finished and it's in desperate need of some help.

I've been struggling with what to do with this room.  As you can see, I took down the gallery wall above the living room and put up one large black and white photograph instead.  I think next on my to do list is to add some greenery for some color.  I love fresh cut flowers but hate how they die so quickly and the cost can add up- I'm hoping that a plant will last longer.  I also need to add some side tables and lamps and some more decor on the coffee table.  Any other suggestions??