I think dark red windows would really pop and look nice.

Double color? Green or bronze on bottom to blend and red on top to pop?

Depends on your style. Have you pick any colours yet?
Did you check out the Ideasbook on this? Love the one with yellow windows...not sure if I'd be brave enough to do it myself!

https://www.houzz.com/magazine/style-101-the-birthplace-of-todays-rustic-look-stsetivw-vs~2170724

We are thinking about an Asian or Tropical look. Everything in Florida is Mediterranean and Old Florida Key west styles. I like the look of wood and stone, but we are stuck with CMU and cement board siding.

For a more Asian feel, leave rafters exposed, onbthe upper section use a wood siding that can be laid horizontal with a gap between boards over hardipanel painted black (use battens at 16" o.c. Vertically, paint to match hardipanel). Spray the stucco on the lower section and leave very rough, natural concrete gray with bronze windows and doors throughout. Paint the front door red or use a mahogany door (very simple style) with a clear natural finish. There are a few examples on houzz that were inspirational for me...but I'm on my iPad and can't copy and paste pictures for you. Go to browse rooms, exteriors, Asian and look through the photos. Hope you find inspiration like me and you can move forward with the completion of your house. Good luck!

I would go with darker wood windows.
@ironwoodbuilders: hello David, if you see a photo you like anywhere on your iPad,hold your front lower button and the small upper power button at the same time and it will take a picture of whatever is on your screen and file it into your iPad library. Then just access the photos from library icon under your comment box in Houzz discussion and attach. Allows three to four photos to be attached at a time. Hope that helps! Good Night