I really love the concept behind this series by Japanese artist Chino Otsuka.
She has inserted her current self into photos from her childhood, playing on memory and nostalgia, alienation and comfort. The works just bring up so many thoughts and feelings for me as a viewer. I think if I saw these images on a gallery wall I would find it extremely difficult to look away.
I highly recommend you head over to her website and check out this series as well as her incredible catalogue of work.