What do you do in the room? I see that you said you want to get "side tables coffee table" but will you use them for anything? Otherwise it's just more clutter to manoeuvre the vac around. Also beware of horizontal space. If you do not have enough storage but you do have tables handy that is where stuff will be dropped. So could you use something incorporating storage, a coffee table with a drawer, a bookshelf or sideboard against the wall? I know some people do not want to make a living space 'all about the television' but is there no television? You also asked "what colors you thinkin for cushions... our house is very neutral with whites and grey tones through out". Do you want to keep it neutral or do you have any colours that you like or do you have a preference for warm tones or cool tones? The one picture you have on the wall does not seem to make the most of that wall. As previous replies have said, choice of artwork is personal. Other people can't tell you what you like. However other people can advise you on how best to display what you like, how to position artworks to best effect.

You have chosen lovely pieces, I love the idea of a floating tv unit, then a coffee table that really adds a wow factor to the room and compliments your sofa and bench seat, some great art on the wall, cushions and a throw... gorgeous

I would get rid of furniture with thin steel legs. In a room with a large expanse of hard flooring, those little legs end up looking like a canteen more than a dining room. You need something with a bit of presence to take the attention away from the big tiles. They are not a feature tile so they need to recede into the background and let the furniture shine. You see how the upholstered chairs and thicker legs on this table make what is really a very austere space come to life. Get yourself a nice pendant and in that room I would actually build some open shelving across the back wall with a contrast wall colour behind it. You can then install some discreet LED downlights in the nooks for a stunning effect at night. With the heater staying where it is you definately need something large, high and eye catching to draw the eye there and to the table setting rather than to the heater.

A very rough idea of version 2, please excuse all the hand written changes but it helps to see what else we are thinking of currently. The back half is a plan we have viewed in a display which has the exact same orientation as us and there was light flooding into the main living areas as well as into the master. It allows for a patio/deck off the master also.