Does the design complement the surroundings, does it flow nicely with the space? What type of glass is needed for privacy yet still allow light into the space? How will the solder joints look?
These and other details I am constantly thinking of. I also create hand beveled glass to add into the designs. This adds more light play to the window. To add another step I think about the width of the bevel to add more depth movement to the design (see below pic).
When you click on this image it should enlarge so you can see the solder details which are smooth and not small clumps.
You should want something that plays with and manipulates the light which adds interest to the space.
Adding stained glass to your entryway and other areas in your home will create a Spectacular space which you will enjoy for many years to come!