Golden freddy's poster is implemented and shows when she is about to attack.
However, you may have bad luck as she can appear while you're on any cam (including the closet cam), and the closet posters won't change while you view them.
So bad luck i think lol.
for 2, check glazey's answer
and i'm glad you're interested in pocket spa! you can learn more about it as it develops in my server :3