Watched the first one by Richard Pyle. Pretty cool. And he's a good speaker.

The second half of David Gallo's presentation has some amazing footage showing an octopus literally disappearing into a coral by changing it's skin color and texture.

At the end of the first part, you can briefly see an aquarium screensaver. Does anyone recognize this one?

I didn't notice that before. You can see the original SereneScreen running on a monitor in several places but the largest view is at 13 minutes and 13 seconds. Maybe Jim should hit Richard Pyle up for an endorsement of the new SereneScreen.

Jim, - I've just been re-watching the Blue Planet episode 'Coral Seas', and was impressed by the grouping of Christmas Tree tubeworms.
How much additional work would it be to have a group of Feather Dusters to replace the single one we have now? - Like we have a group of Clams, and a group of Barnacles. - If it's possible, without affecting your plans too much, I think it would produce a nice effect.
..... Am I asking too much? :)

No, you are not asking too much. I'll eventually have a group of tubeworms (including christmas tree worms).

Thanks, that's good to hear. Tubeworms do look more natural in groups, I think.