I don't think your sofa is too big. It's a normal sized sectional, with equal portions on each side. Also, I think the placement of it is fine. Speaking from personal preference, I like the last photo, where you've minimized the yellow accents. Not that I don't like yellow and grey, but that just seemed a bit busy. The neutral palette feels a bit more serene, and I like that there are fewer cushions. Also, is it a case of the carpet being almost, but not quite, the color of the sofa? You might consider a lighter, creamier carpet, to visually open up the space more. That said, the carpet looks new and it's on trend, so don't worry too much about it.

Like this one maybe?

Possibly find another space for the water.

I strongly agree that the last picture, with fewer cushions and the soft creamy yellow, is really attractive. I realise the water wouldn't be there if there was another easy place to put it, but it would make a world of difference to move it out of sight somewhere and put art on that side wall instead. Pse click to see the impression.

Art adapted from http://fineartamerica.com/products/abbot-kinney-sunset-anna-bain-acrylic-print.html

The monochromatic couch/ottoman/rug combination needs some life and dimension to contrast the look. Find ways to include additional lighting sources and a few soft touches, such as dark green foliage, a bright brass lamp or chandelier.

Got the angle of the pic all wrong, didn't I? Sorreeee.

Sofa and placement are fine - would it be possible to put a little accent screen partially around the water container and then add a bit of art to go along with that. Another thought is to introduce a light teal blue to the cushions which has a softening effect, too.

There isn't another plug for the water cooler unfortunately but I will put some art there eventually. My brother takes some very nice shots and is in the process of turning a few into canvases for me. I'm more concern about my rug, throw pillow, blanket situation currently. I do like the idea of doing a lighter carpet. There isn't a ceiling light in the room. I put up the one that is there and that's why the lamps and end tables are necessary. I am doing real and yellow in the kitchen. I don't know if I want to introduce real in the livingroom too.

Teal* apparently autocorrect doesn't like that word

the color palette is too wide for some but way too narrow for me. you either like a lot of grey or you need to add more colors.

choose your pillows wisely so people dont need to move herds of them in order to sit. really, the most anyone would need is one for the small of their back if they have short legs. the rest are extraneous, so make the ones you need count.

add in chairs so more than 2 people can sit comfortably, too.

I saw the pictures you posted in the other thread. It's actually a nice bright room. I like the creamy rugs. Also like the ideas for more artwork.