Photography is all about light and how we see and use it. Many times we'll be working at a location and "see" an idea or a scene.
This particular location was on the Jersey shore. As I was checking out the house, I noticed the door frame leading out to the small deck. The sun was lighting up the deck and the Adirondack chair. Clouds in the sky. I couldn't resist.
The second image was on the upper floor. The sliding door lent to a perfect image for me. The mirror the shadow all came together in my mind. I often use the phrase, "I see things." when I have an idea.
THIS is what I saw. Enough light in the room to give me a balanced (enough) exposure to see the shadow, her reflection, and detail in the back of the dress. Yes, I lost some detail in the side of the dress due to the sunlight, however, that is part of the creative aspect. I liked the "look".