You need some art work above the couch to star with.

yes definitely a big artwork like here http://sainteriordesignstoronto.com/casanova.html

or mural http://sainteriordesignstoronto.com/fire-to-the-rain.html

Lamps are needed. Overhead light is very harsh. Tables serve a purpose as a resting place for glasses, books, etc. Is that your view behind the loveseat or is that a mirror? Don't you want to face the view?

Artwork above the couch possibly flanked w/sconces, pillows and a throw on the couch, and a plant or small tree in the corner. Something metallic... the planter, table tchotchke, or something to liven the space for additional pop and interest.

I agree with the other commenters. You have good basic furniture but you need art, decorative pillows, lamps on side tables and perhaps a reading lamp near the loveseat. This is a great opportunity to add things that reflect your personality - your personal taste in art and your favorite colors. A nice tall plant would also be nice. Like another commenter, I also wonder why the loveseat is not facing the view. I can't figure out what the coffee table is made from but it doesn't really go with the sofa and loveseat.