Contemplating windows

I glued the remaining window frames into the walls, but left the door frames free because I'll need them to make the curved 'glass' inserts above the openings. Believe it or not, the only fitted 'glass' shapes provided are for the large, arched windows. The others have to be cut from a skimpy piece of sheet plastic. 

Also, I'm playing with ideas for painting the molded-on pane dividers on the large windows. I think I'll colour them - back and front - with a Sharpie permanent marker. The model needs 10 of those windows, and there are 12 in the kit, so I can do a little experimenting.