Felicity has many of her favorite things in order here. Lined end to end are various statues and figurines. Lined up on the far right are the team of firefighters. And of course her favorite books scattered on the couch, which the former seem to be guarding.
I was just remembering when Kwamai used to line up all his cars "just so" as well.
I also have noticed that Felicity counts almost exactly the way Kwamai used to: she will count to 12 and then say "14, 16, 19" and repeat these over and over the rest of the way. Is this some standard small-child formula?