Your couch is cute! Move it a bit away from the wall. You could pull out the dark burgundy color with drapes. What do you like?

Agree pull it away from the wall about 6" so it doesn't look stuffed in there. I would stay with the neutral curtains. Toss a light color throw on 1 side and a dd a light color pillow. What else is in the room. I would keep everything else light and airy.

I think that feminine cream colored cushions would look nice. Maybe remove the painting from that wall.

Slipcovers

Wow the couch looks really nice, it's definitely an eye catching piece in your home. I would suggest pulling that cream color from the couch for curtains and throw pillows maybe adding two small burgundy color pillows from the color of the couch. I would keep the rug and curtains simple, perhaps a thinner rug that is not textured and heavy in the space. I also agree with moving the couch from the wall it looks a bit squished in right now.

Pull colors from the fabric as suggested. This says Emerald but looks blue to me...typo?

Helena Round Ottoman, Emerald, Standard · More Info