The idea is good , the representation needs improvement. It's difficult to create realistic environments only by brush, that's why we use stock.

If the car window is showing the stained glass as a reflection, the car body should be showing it as well, especially the roof, and to a lesser extent, the trunk.

Similarly, the hood of the car the viewer is "inside of," should likewise show some reflection of the stained glass.

The back window looks like a tv screen, broadcasting the image.

No, window is not showing the stained glass as a reflection, but the window itself is made of the stained glass, in my imagination.

NEAT IDEA!

made me laugh...good picture, wish you had a hi res

It's so cute except the background is really blurry. :p

Sorry but this looks fuzzy and kinda hurts my eyes

It's really too blurry and it needs high resolution.

Very fuzzy & blurry...i have a headache..

So you feel brightness-contrast was a bit too much?

Yes author, this would work much better as a visually 'softer' image. The blownout highlights are too bright and not pleasant to look at. I also dont know if you have added some gausian blur to the image or manipulated it in someway to make it less crisp, but I would undo that.

I have added motion blur to create some movement effect for the snowfall.

The thing is that many of us can't look more than 3 secs at this without our eyes starting to hurt.
The brain tries to find a stable focus point in the view put since there is none is goes: "Error. Cannot Compute. Error" and it hurts .
With the eyes only half oppened the contrast is really awesome

Heehehe I looked at it with eyes half opened.
Honestly I really thing the overall blur to the image is just as disturbing as your color choices. I would have considered desaturating the bright blue/aqua to town it down and bring the red to a more deep hue instead of so bright.
I think you had a decent idea, but could stand to make a few changes.