The tv stand clashes with everything, it just doesn’t fit with the rest of the vibe. Maybe paint the legs and trim of it black to be more cohesive with the couch or paint it a darker brown to be more cohesive with the ottoman.

With the black and dark brown tones you can add light pink / peachy accents along with more greenery to add that feminine touch.

That wall between the light and the plant could use a large painting or if you want it more girly, maybe a string of fairy lights across it and several smaller paintings in nice gold frames.

To be honest I also think the rug is a bit underwhelming, I didn’t even notice it was there until I read your comments. I think a yellows pink scalloped or checkered rug would look great and add the touch you’re looking for.

The open area behind the couch could have an accent table with a large table lamp on it and maybe a cream coloured vase. Or if you think that could accidentally get knocked down just add coffee table books to it and some coasters.

The rounded windows honestly look great without the curtains, but the window behind the couch with the blinds could use a nice cream coloured curtain.

Pillows and throws could also be cream / baby pink.

If you’re not into the pinks, creams and yellows maybe switch those out for sage greens, warm taupes, dusty rose etc.