WIP - Doctor Who cube

I started the TARDIS as a side project (easy to manage while riding the bus). After finishing it, I felt the need to do more, so I made an angel to put on the back. Now, I kind of want to do a cube, so I'm trying to figure out what else to add to it. Maybe a cyberman, a Dalek and two other something's that I haven't decided on yet.

TARDIS pattern by weelittlestitches, not sure where the angel came from (sorry!)