You missed a spawn location for the Pool; you need to look up at the top too. Just like the other two spots sometimes it's a shrine, sometimes a health pool, sometimes nothing, but sometimes it's a reflecting pool.
Yeah I realize it's not entirely necessary to be long winded about the spec when you can just explain how it works while demonstrating the run. And why it works is pretty self explanatory. I love the videos where people spend like 10 minutes moused over an ability just going on and on and on, makes my brain twitch.
Thanks for the other comments, I appreciate the feedback.