Shadow Hunters Smash Contest/ Round 362

I want to participate in this new contest with a new picture different from what I publish of Marco's pictures, as I depended on lighting in the shadow.

In this picture, I was in the office and while the sunbeam was entering through the window, I found this wonderful shadow in the shape of a triangle for the chair legs. It was really wonderful and very clear.

Thanks to @melinda010100 for hosting this contest