1. i think you need to work on your handling, you need to make the handling of the cards look much more natural.
2. as said above, use the classic method of simply placing your hand over the card to reveal the second card. it has much more of an effect. the way your doing it now does not look as good, and clearly revealsthe secret.
3. in another topic you say it's risky. how is this way of cleaning up risky

i use this all the time, but i shuffle the deck with patter saying im trying to shuffle it to the top.