Wow, this is a very nice shot. I really think it one of the strongest pieces you've posted to date. It has alot of emotion, and alot of story to tell. The cropping/composition is superb. You dont include the persons head, because they are of lesser importance, and the inclusion of the candle creates some good depth. Also, the subject or focus (the elderly woman) is nicely position as to were the camera focus and the table lines and movement lead you to her, and essential to the meaning of the piece "contemplation"
Very nice work, I hope these comments help you understand why this piece is great, so you can apply it to more of your work. Thanks for looking at my work too.