I like the concept of all four Aces, but this one stood out to me a lot more - perhaps because I'm a sucker for red-on-black, or perhaps because the lines seem a little more honest. It's obvious they are directed and reflected where the smokey ones seemed a little more as though they were trying to be free but were confined instead. I'm not sure if that makes sense to you at all. I do like the mix of movement with straight lines and symmetry and I think you've accomplished that very well.