Many look for homes with over sized windows allowing for views of the natural surroundings. (parkcitysothebys.com)
A unique solution for a kitchen design that is not big enough to have a full sized window is to add smaller windows in the dead space behind the sink. (decorationchannel.com)
I have the same problem with odd size windows in my master bedroom and your idea could work well. (shineyourlightblog.com)