Adding feet to the dresser won't work well because of the toekick. Put it up on 4 cans of beans or tuna to emulate the look, pretty sure you won't like it. Make it more retro 50s, my 1956 bedroom set has the toekick at the bottom like your piece. I'd rather have nice stiletto feet like all my living room furniture but other than that it's wonderful and makes me happy. DLawless has MCM inspired hardware, was thinking the dished saucers but the chevron ones might be nice! If you can figure out how to remove the toekick or are brave enough to cut part of the centers out so it looks like feet go for it though. I'd do skinny and only as tall as the toekick or proportions would get wonky. I tried and failed to finish smocked round pillows, very retro. Piped around squares and squares with buttons in the center are MCM or you could buy pillow covers made from one of the iconic fabrics from Girard or Eames or a Calder inspired mobile or 'atomic' then pull a color for the ottoman. You can get incredible deals on eBay for fabric remnants, search Maharam and you get more suggestions under the search bar. Have fun searching for a new chair. Looks like you have a great spot for a nice wide comfy chair like a Womb or Bird or Wegner Shell/Wing or Egg.

You do not need to put something on every shelf. It appears that either niche is large enough for a flat screen TV. I'd paint the back of the niches to match the cabinetry.

A round or square end table big enough to provide useful space for both sofa and loveseat would work, with a large lamp. I have a couple of live plants under a similar mini-split ac unit and also near hear registers and they don’t seem bothered as long as i don’t let them dry out. Some pillows that pull the color from the very pretty rug would be nice, maybe the pink? Or green? Drapery panels can often make the difference between a comfortable room and a cozy room that feels finished IMO. You might want to check out curtains in linen or cotton from Ikea or Target, they’re quite inexpensive and look decent for the money. Mount the rods near the ceiling molding and have the drape just barely touch the floor. You may have to shorten, they make iron on tape that make it easy to hem without needing to sew. A cream color would look nice with your gold-beige walls. Mount the rods wide enough to push the drapes back off the glass for maximum light and views when they’re open. You may never need to close them as you have blind for light and privacy control. hope this helps.

@Flo Mangan - thanks again for all your input! Evergreen Fog is actually the kitchen wall color, and while it looks bad (IMO) against the black marble backsplash/countertop and white cabinets, it looks quite nice against the warm wood floors (unfortunately not pictured above). I also like the rug that you linked (and mood board) and agree that the rug that we just took delivery of is quite safe and boring. Just to make sure I understand, are you thinking that the large TV could be an accent (Evergreen Fog or otherwise), and the rest would be a soft/warm white? [EDIT!! The kitchen might be BM's October Mist.... can't quite remember] @beeboo22 and @mxk3 z5b_MI - thanks for the kind words! @cat_ky - can't say I disagree at all. We might keep this rug and move it into a bedroom, and then get a proper MCMish rug for the space. @housegal200 - the fireplace is...um...something. I have a love/hate with it, but I feel like it's sort of the heart of the house and wouldn't remove it. Maybe one day reface it though. It's already been retrofit (by a preivous owner) to accomodate a wood stove, and I'll most likely get a modern looking woodstove installed. @Sabrina Alfin - I dig the first pic quite a bit. Yeah the drapes are really weird, and I like the idea of individual shades (or some alternative), but the 4 outside windows that open have a crank that opens them, which would get in the way of any shade, and I wouldn't want to have the windows without any some kind of treatment, for privacy and security reasons. @JP L - don't worry, these windows aren't going anywhere! They're super unique (and custom) and I wouldn't replace them unless I had to for some reason. Interesting comment on the ceilings. So I know that a previous owner did tons of DIY work in this house, and the house has a super massive attic space and is essentially 1 floor. It's certainly possible that they drywalled some preexisting ceiling to add can lights. I'm a bit scared to "peel things back" and take a look... we spent a lot of time and money remediating a bunch of issues in this house that stemmed from funky DIY work and general lack of maintenance. Would be pretty damn cool if there's some amazing ceiling just hiding underneath the awful drywal/texture job that was done. And thanks for the kind words about the house. It's been a hell of a ride and challenge so far, but I'm digging it.