That is probably one of the sweetest Fanarts I've seen. I just love Aerith's smile, and her eyes ^__^ Her hands together with the blossoms just looks so...pretty. She looks so happy to be with Cloud. Cloud looks happy too
And I'm gonna have to say I agree with Waitress Girl ^. It just doesn't seem right that he doesn't know. I think that he really is aware of his feelings, but he just tries not to show it.