It doesn't matter, but, if it were in an exhibit, would you add a caption to provide a clue for the curious or just something to provoke interest?
Yes, I guess I might, if I wanted to show what can be done when physical reality is reduced to light and shadow. I am sure you have seen many exhibited works with no titles. In this case, if I had to title it, I would call it something along the lines of light, shadow and texture and not what it really it is. But sometimes, it is easy to figure out.