your afternoon/eve plans at AK sounds like lots as you said but a very nice pace. They are all more relaxing things so it sounds like an enjoyable time. I don't think you would even have to worry if you moved them around a bit either.
YAY for a second day at MK

that's what i used second days for as well - just fit in the top choices of everyone and do some more quiet things and just soak up the atmosphere
i had a peek at that link you posted and I'm glad you did. i didn't realize they have a butterfly garden available - we LOVE going into those and will deffinitely add that onto our Epcot day

DD13 just loves it when they land on her and she loves to take pictures of them.