We've decided on six panels per window for the most part, except the smallest of them, which will have no muntins (now there's a new word for me. I knew what they are called in German - Sprossen - but just had to check the English term), while the slightly smaller windows on the west gable, second floor will have four panes.
We've gone for French door style from the kitchen to the back garden, with a secondary entrance looking a little more like a cottage door. I think Herr Keller would have preferred more glass, but the Irish in me stuck to what we felt we liked best, for good or for worse.
The best part is that Herr Sauer said we should have them in before Christmas! Originally the plan was to have them a few weeks ago, but if they can do it before Christmas we'll be delighted. My wife gave him a big hug, so maybe he'll stick to his promise.
This is what they should look like:
|South facade, planned.|
|West gable, planned.|
|North facade, planned.|
|East gable, planned.|