Sketchbook challenge - Windows

After I checked out this book at the library, I found inspiration for February’s challenge.  However acquiring the book is not a requirement for the sketchbook challenge.  All the information is posted on this website.

The theme is windows.  There are so many possibilities to explore when it comes to windows. While staying in Galveston recently, I was inspired by the architecture on the island and made these sketches in my sketchbook.

(click pic for enlargement)

I used pencil, Inktense™ watersoluable colored pencils and watercolors.