Agreed. Needs art behind the sofa. If you want to maintain the very neutral colors, add black in the throw pillows to tie in the rug

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Your room looks nice but the two tone curtains are not really working with the other furniture.

Stationary bike needs to find another home. If you or hubs ride it hard enough to sweat the the furniture might get wet. IF you don't sweat then what's the point?

Floor lamp, table for the chair's occupant to put a drink, art, unified curtain color for all windows.

Thanks for all advices, I think I should take the bike away as we not using lots:) put a large wall art behind of sofa, add a throw on sofa, put a Floop lamp on the side of sofa ( the place of bike stay now) I will add another picture to show everyone which I already have an art print in my room, should I match the color ?( the art behind sofa & throws color)Please leave your advice if any, thanks for all helps*-*

Please see another art print which close the living room, should I match the color if I want buy another art for living? Thanks!

Hang that one 5" above the sofa and find another one with a darker frame to better match the credenza.

You are missing side tables, table lamps and floor lamps

No, they don't need to match, although some people love the match-match look (I don't). They only need to not clash, and have one or two elements (even just small bits) that go together.

Get rid of that light in the middle of the ceiling. Or at least put a much, much lower lumen bulb in it. Horrible, harsh lighting.

Can we have another angle

Can you post a picture after removing the bike and take a picture from the location of where the bike is currently? Also is that a tissue box on the coffee table? Can I see the room without the couch pillows? Are the curtains cream and gray?

Another way to liven up the room is a few more large plants.

Hi. People are suggesting large art over the sofa. How large should it be?

Ceiling lighting doesn't do anyone any favors. Much better is a table lamp or wall sconce in each corner at chest height.

Regarding the art, I'm a "go as big as you can on wall decor" philosophers! Get from local artist or art.com.

Thanks all suggestion! I will remove the bike, add a side table, a lamp, art and cushions, then I post a picture for everyone to see:)

Something like this for over your credenza.