That should be enough entries featuring the emoticon. I am still undecided if the tongue-out is too playful and young... but it could work.
I was looking at your first entry #14, and I wonder what it would look like to turn the right 'i' around (flip horizontally) to face the other one. It might appear as if two people were facing/seeing each other as they would using our service.
It would be rather subtle, so not sure if we need to draw attention to i's in a fashion similar to entry #1??
Just some thoughts. Thanks for the quick revisions.