1. Sun changing into moon or anything else showing it was a day and now we have night. 2. Girl getting off the chair/table/anything that you can get off from, barefoot. Would be awesome if it showed only her feet.
And would be even more awesome if the source was available in HD. I mean, it must be HD xD
I think i can help with no.2, get Ani-Kuri 15, the part from 08:25 to 09:25. Ani-Kuri 15 is a 18 minute anime with different stories in it, I think the specific one I mention might suit you well... Also you can find it in 1080p