LBP Trouble on the Temples of Azera Guide

A quick run-through guide of my level "Trouble on the Temples of Azera". (Check out the hi-def version now uploaded)
I don't get the hidden pick-ups as I'm interested to see if anyone can get 100%.
Also the observant amongst you will notice that I only use 2 of the 3 switch trigger stickers.
Where could the 3rd one be hiding?
Plus there is also a nice reward if you manage to ace the level.
Please heart the level if you like it and me as a player as it will encourage me to make more levels.