The windows are too small. I think picture windows would be good.

Picture windows while ok will not be able to opened for ventilation and will not meet egress code if any of these are in bedrooms.

We have similar windows on our midcentury house and went with Andersen sliding windows.

The right window would be a slider in your case to fit with the style of the house . Picture windows were the norm though I have a 1956 MCM ranch and there are these interesting louvers below the picture windows that could be opened for ventilation we left them in one bedroom for conversation piece but changed the windows to some like these for ventilation since all our windows are much larger than yours. BTW no modern farmhouse windows on that house please.

Good idea to make windows large.

Thank you all so much!! This is very helpful!

Also promise I’d never do modern farmhouse wi does 😩😩 such a travesty