Very cool technique, thanks for the class! I had a great time following along and also experimenting with the effect on my own. For me, the biggest take away was working with non-destructive smart filters and adjustments. It's a valuable workflow tip that I'll certainly carry forward.
This is the image I created following along with the instructional videos:
Here is the original image I choose to work with for my own experimentation ( because i dig chimps!):