Thanks for suggestion. I was thinking about having a chandelier, but I have heard that a fan is almost a necessity. The room is going to be used for a dining room as well as a sitting room, so I feel I need some kind of light over the dining room table, but the table is not going to be in the middle of the room, but to one side... Any suggestions? Also do you have sconces? I want to have free wall spaces...

Those current wall colors are awful as they don't even seem to complement the actual wood tones and they are dark. It looks like an awful murky dreary mess. There has to be a color that lightens and brightens the room without it being a "horrible contrast". There is a veritable universe of light paint colors which read completely differently from each other because of the undertones. You might really benefit from hiring a true color specialist to suggest a specific paint that works best in your room. And of course lighting would make a huge difference.

More pictures. I would like to paint the front door a more neutral color eventually!

Giavanna, I think your best best is to first settle on a look you're going for. Go through Houzz photos (do a search on Open concept living rooms) and create an ideabook of things you like. Do you like modern styles? Traditional styles? It looks like you have kids, so family friendly will likely be important. I think we need a bit more to go on before we can give you good advice.