Checked your sim out a little bit just now.
Think you should be able to see, when an attack or sexual reproduction happens. And clicking on the "Reps" to view them should not (necessarily) move them around at the same time, because you might not want to intrude into the ecosystem, while you watch.
Music seems to be fitting well.
You want to have other symmetries and body configurations later on? Controlled organism movement could be more important in 3D too, I guess.