Great space, love the room.. Have you ever considered painting the ceiling in a fun, vibrant color? Might be just the thing you need to brighten up the space. If you are in the market to look for new furniture pieces, be sure to check out www.bryght.com, they have stylish, modern pieces without the markup. Happy Decorating!

I would move the two chairs against the wall with the table between for a "side" seating area... which can still see the t.v. (needs some baskets or something under that table... a trunk maybe...to bulk it up). Then make an L shape with the other couch/loveseat that you have. You also have great storage along the tv wall but it's kind of bland... punch it up with a color along the back of the bookcases or a funky wallpaper. Drapes for a punch of color with some other accessories and you'll have a gorgeous room. It also looks like you have an ottoman.... put a tray on top and use it as a coffe table for a while.

Despite previous opinions I have to say this - DON'T GET DOWN LIGHTS!!!! We had them in our previous home. They were constantly blowing no matter what kind of bulb used. The casings kept breaking. This meant we couldn't just change the bulb ourselves. It drove me mental. They spotlight certain parts of a room instead of lighting the whole room so when one of our main "culprits" kept blowing in the kitchen, I had no lighting above that bench until we could get an electrician in. More than one electrician told us they are a serious fire hazard. I will never have them again!

Well that is an interesting picture. I can assure you that hanging wall gardens are all the rage and that is a great idea but they can also be high maintenance if exposed to high winds / sunshine etc. I have seen some lovely fake ones that would do just as well. You could also have a few pots with additional greenery. As you say your view is not "great" maybe you can have a creeper in one of the pots that can weave its way through the railing. I probably wouldn't go for one big chair as it could dominate the entire space. I would consider a table with a couple of fold-able chairs .... something that is comfortable, inviting if you have friends over but can be placed in a corner if you just want to open up the space. I do not think you need a carpet and but maybe some fancy outdoor tiles will look just as nice. You want it to be easy care and weather proof. Do you need or wish to incorporate a washing line? A pull out one from a wall will be perfect that way you can retract it back when you are not using it. If you deck gets too much sun, you may want to consider some shade shutters. I have seen them called 'plantation' shutters. GOOD LUCK