Although this is a personal preference, here are my thoughts:
look for the real thing and observe what you see. If you look through a window from inside to outside, the window appears to be very bright. If you're outdoors and look through a window, all things inside the space look rather dark. So, object inside a confined space are always dark compared to outdoor objects (unless the room is lighted).
So why do people paint blue windows? I sometimes wonder, although I understand why. It is the reflection of the blue sky that can make windows blue (like water). This is because of the reflection of the am-bient light (not direct sunlight). Glass does only mirror light beams at certain angles (like when you can't see who's inside the car because of the reflected light). But that is hardly ever the case for all the windows at the same time (of that same car) and most of the time it is not blue, but white/bright grey.
Some examples I found in a quick search:

Lots of reflection in the above image. Notice the rather cloudy sky.

The typical blue reflection of the sky.
Notice the angles of the windows in the above two images. The viewer (camera) is below the heli. If you would look to the heli top-down, at least the side windows are unlikely to be blue, as they would reflect the ground instead of the sky.
Hard to find pictures of viewpoint above the heli:
Problem you have with the see-through-windows:
I prefer black (or dark grey) painted windows, finished with a gloss varnish. Some time ago I saw some very nicely done Me109s on this forum (painted by Intobattle, but pics are gone now). The windows were dark grey, with a black inkwash. So the corners of the windows were darker than the middle part. That gave it a nice touch and I use the same technique nowadays.
Observing the 'real world', it's the best advice you have
Patrick