Carriage Lane Design-Build Inc. I would look into coffee books to give a range of colors and stack a pretty paperweight on top, perhaps bronze or blue in nature, alongside a fiew more nick naks. I hate to group items in the middle, spread it out a little and build on top of one another to create heights.
Interiors International, Inc. I like the pieces you have. I would however not center them but put them off to one side. You could also add color with flowers and a colorful candle. I would also put a colorful plate or other low item on the other side. Your doing great so far with the items you've chosen.
Cheryl Draa Interior Designs I agree with the above designer, but perhaps also put down a table runner, or a pretty scarf under the books and things you already have. That would add some color to the room and ground the glass table (also keeps off fingerprints).
Lydia Put flowers with more colour, a textured round mat in the middle and a big jar of jellybeans! Try cranberry for colour. If possible, add some baskets under the table. Your space needs some texture and curves.
Barbara Griffith Designs You do not want anything that is too tall. When you sit on the sofa can you see the person sitting across from you while having a conversation? It always bothers me when people put tall objects on the coffee table and you cannot have conversation...keep it low. A beautiful large bowl, a small green plant, several books, etc.
Barbara Griffith Designs Colors should be what you like. Make it a variety of colors and the objects interesting. As your rug is also very neutral..add some colorful pillows to your sofa. Hang some neutral, natural fiber drapery panels off the sides of the windows and hung high (95-96") on a simple rod. This will add softness to the room and make it look more completed.
abbshel Just my opinion, but I think silk flowers are so outdated except in small arrangements that act as a complement to the larger picture. I do like a silk tree in a corner (just one or two per home).
Barbara Griffith Designs Add drapery panels first..It will take up some of the space between the windows. Always try to find large art for small spaces..In larger spaces, do groupings, 1 large piece with several smaller pieces with it.
decoenthusiaste Lower the art above the sofa to within 5-8" of the back so it is part of the vignette you're creating. Agree on drapery, pillows. Your coffee and side table seem very hard edged and cold for this room. Consider warming it up with curves and wood. Try something versatile and useful.
I like what LizaJane and Barbara Griffith posted.