It's not clear to me what you're asking for. Do you want to build actual windows for an exterior wall?

Yes, I am wanting to make some frames to put the mirrors in and just attach them onto the outside wall of our shed just for decoration.
Here is a link with pics below. You can see the windows on the sides of this building. I have been there and saw them and they are just decoration. On this pic though they don't have plants in their window boxes. But this is something like I am talking about but I wanted 4-6 window frames. Anyway the pics are the last 3 pics on this link below.

Here is a link that might be useful: English Tea Room window frame idea