Your sleights are all well executed, what I would say you most need to work on is your presentation, specifically the motivation for your actions. An easy one right off the bat, you actually say the individual jacks names, and then clearly show each jack. And even if that is only noticed subconsciously.. it still has negative connotations in the mind of the spectator. Instead, use the naming simultaneously with which jack you are showing, as that motivates you "clearly showing" both jakes. Does that makes sense? Another specific one, your cascade. Well done, very clean, and you try to motivate it with stating their cards in the middle of the deck. I would either recommend a different control, or else doing that move on the off beat. Try to play it off as if you aren't even thinking about it. Finally, your patter is just dry. The routine is great though!
