Also, not showing a pic of it, but I re-added the sky to the connecting room and played with events so it undergoes the same "sunset" effect that the rest of Gaia Heights undergoes partway through the game.
That is a great idea. The sunset effect you showed earlier is one of the best graphical things in any hack, so I would sugest using it in quite a few places even with all the work that might be involved. Of course, if you really want some extra work you could put a "night" in after the sunset...