This is the window being replaced

Current 1979s window

25/50/25 could look pretty good. Second choice could be two double hung windows or two casements with grid. I don't think there's room for three openable windows.

You can get some masking tape or blue painter tape out to try different sizes or ratios of the possible windows. Consider the proportions of your existing double hung windows.

Agree with Celery’s suggestions. No shutters unless they’re properly sized.

Cute doggie in the window!

I'd keep it similar. 4 panels, you'll especially love that they open.

I have to agree with @chloebud removing the shutters would update the home considerably.

Replacing that siding panel above the window with a solid horizontal panel piece to match the brick would also enhance the new window. I think adding that verticle soffit above the front entrance & garage was a copout on the installers part, not attractive.

To clarify: The 25/50/25 was proportional split

Picture works best there and will require tempered glass. Those type of bows are commonplace here in NoVA area. They aren't quite big enough to accommodate multiple operators without looking squished.

I like the 25/50/25 idea.

"I like the 25/50/25 idea."

Ideally, yes, but that unit is probably only 90" wide and would squished for sure in that configuration.

To clarify: The 25/50/25 was proportional split

Understood. I would just reiterate that you may not be happy with the amount of frame material to glass ratio. That is a small opening for that type of layout as WoW and MWM have also alluded to.

I agree with WoW, picture window. One piece of glass is classic and so much easier to clean. You have 4 SHs on the second story. More SHs is too same-same. I would want a focal point. Picture window.

If you want the breeze, three proportional casement or horizontal rolling like this looks nice, but it’s modern, not so traditional, and may be walking you into more of a transitional look. The odd number of three is never a bad thing. Definitely neither the two SH, nor the three disproportional 25/50/25, imho.

Ooooo, I like that I can edit an older post on the computer version of Houzz :)

Looking at the photo example I posted, I have to imagine that the space that those three windows I see on the above example is wider than your opening by a bit, maybe double the width of window space you're working with, idk. And when I zoomed in on the above picture, I realized they literally separated, those three windows (so pretty), by a few inches.

After noticing the width you're working with and the above details, I'm back to " single piece of glass picture window."

I wonder if this is possible--picture window on the top two-thirds of the opening and two casement or awning windows that do open side by side on the bottom third of the opening? Too contemporary? Too weird?

I'm just enjoying pondering someone else's project while ignoring my own :)