Keep the same style windows. I love your current colors. You have a really pretty house.

You can get larger gutters and leaders to efficiently move water.

If you wanna go with a color change you need to look at the soffit and fascia as well.

I would think about loosing the muntins as they make windows and front facade very busy doe to the size of the windows.

I was looking at a different style of windows. I agree…my current windows are “busy.” Here are a couple of mock ups I did online.

That is what I would do for sure. Sane color, just no grids. I would be certain you get a quality product as those are some good size windows and you will want them to last.