I really love this pose and idea! I'm no art expert, but maybe a bit of the frustration you're feeling comes from use of white space? The other love notes have much more white space than this one, and I think it helps them feel bright and airy and love-y (for lack of better description xD). Especially if you compare this one with the Kaiba note, which was also done in a beautiful gray, this one feels more crowded and dark, while Kaiba has an open, light composition. Maybe that helps. Either way, I still love this one, and I love his wordless confession.