I have taken roughly the same photograph in our house many times as it is the subtle difference that I see
Our house is a very nice house, our house … madness … we get the sun a lot, well a lot of what there is, but not as much as we would really want. So inside shadows are there. Sometimes very strong, sometime weak and fleeting. Both offer a challenge as they change in position and intensity.
Geometry and geometric patterns also intrigue me, so to have both shadows and straight lines is a good outcome.