The vertical blinds MUST go. Sorry, but they are hideous and add nothing. Get some fabulous mid century fabric pattern in some gorgeous colours and make curtains. You can make a couple of scatter cushions also out of this fabric. Then pick out your favourite colour from the fabric to add some plain cushions. If you have gone with the patterned rug option such as asquithoatley has suggested, then just pick out the gentler colour for plain curtains to compliment the rug. Either way then choose cushions using any, or all of these colours. Then you should look for some decorative items in these colours such as beautiful bottles that might pick up an aqua, or some lamps with bases that colour to put on a side board. For the wall I suggest that you look on ebay in mid century modern and see if any wall sculptures attract you. There was quite a fad for enamelled metal wall sculptures back in the 60s which would add some life. Try to find one that also incorporates one of the pattern colours. Susan_66 made a great suggestion with a Howard Arkley print of a mid century house. You might even find one that is similar to your house style which would be fun. Happy hunting. You have some good pieces and they will work well with a bit of fun fabric or rug to link them.

First ,is removing excess furniture an option? Second, why bar fridge in the dining area, that really ruins the look. Seems that you can not move dining table closer to the kitchen because you have light pendant above the table, so can you move piano where your black couch is and couch on the other side of the room instead of creamy colour sofa . I notice the luck of coffee tables and side tables,that's probably why you like to sit around dining table, it is not visitors friendly and doesn't encourage conversation or interaction. I will come back to it have to study photos more. Are the arm chain the other room similar colour to the couch in the dining area?

Ok, I see ...one possibility would be to retain the unit as shelving where it is and wall mount the tv on the adjacent wall so that you can optimise seating arrangement. Otherwise I think you are on the right track, a circular rug would work, maybe a couple of mid century chairs might look nice, you could put some trailing plants up high away from your little one, maybe a basket or two to keep toddler clutter in check would go with an eclectic kind of look. If you move to a larger space in the future, mid century chairs would be easy to pair with a couch.. I think try and bring as much storage as you can to keep the space manageable.

really quite struggling with layout in my living room. having two double door entrances opposite each other is a big pain. please help in any way you guys can. and can you guys also give me some feedback on the whole living room design. some tips and tricks and also point out some mistakes? thanks