Yeah, you could make the tagwall normally (900x700) then add another section seperate as a gif (900x200) for the animated header. So when you hand in the tagwall to Pulse, You send it in 2 parts that fit with each other.
You have a sun in the room.. What I would do is just darken the room itself to keep the focal on the planets. In fact, I would probably just duplicate the room layer and set it to multiply. Then I'd merge em and blur it for depth, just a bit. The planets aren't bad either, but their lighting needs to match up as well. (Earth has no shadow, but others do?) Oh and the text, I say move the grey bar to the right side of the blue so it's one bar, and maybe drop it down a bit.
There is a shadow under the Earth, it's just that the carpet is dark and doesn't show it much, but I'll put the opacity on it a bit higher. Tried the multiply on the room and darkened certain parts, and added a curve layer to make the light pop more. or
