Hi shinae, keeping things simple and de-cluttered is the key to smaller spaces. You can add bits of color to accessorize and consider furniture that serve multi-function such as dining table as office desk. Check out the following ideabooks. https://www.houzz.com/magazine/ideabook-911-how-can-i-make-my-living-room-seem-bigger-stsetivw-vs~209321 https://www.houzz.com/magazine/6-ways-to-magically-enhance-your-small-space-stsetivw-vs~165912

Like your space and choice of green. Like the green in the kitchen you referred us to. Looks a little darker or less yellow than one you did with Photoshop? You have the same issue as many of us, for one reason or another we end up trying to blend two disparate styles. The couches say man's room, formal, brown wood to me. Your room, kitchen and fireplace say much lighter in colors , style and spirit! If you try to blend the two you will end up with neither. Your purchases to go with the couches will just add to things pushing you in a direction you don't appear to want to go! I'd suggest you find some sofa covers, or even bed coverlets if you can't get covers to put over the couches. I like the colors in the fireplace. Please tell us more about what styles you like.

Hey! Great space! The table is too small for the space, it would immediately help if you had head chairs on either end of the table. It would read larger. If you're interested in a new dining set, try a round dining table, seating at least 6 for size. You need something to define each space, a new furniture arrangement could help. I would try rotating the sectional so that its off of the window. Good Luck!

What is the rest of the house like? Would you like overflow sleeping areas or more storage? If you can't raise the floor (and the ceiling?) you might consider building in some comfortable seating/storage areas that use pillows/cushions and play up the multi-level idea and make it look intentional. Similar in concept to the stepped couch.