Windows are an interesting and much used gambit in painting, playing on inside and outside at the same time and giving the opportunity to contrast light and shade, bright and cool colours and different perspectives.
This is one I did a few years ago down in Gascony, and managed to sell! I feel a little embarrased at putting it up here, having shown so many seriously good paintings. But I guess you have to assume your deeds. I saw it again recently in its owners house.