What a great 'project' you had. And you also got some cool pictures. I probably wouldn't be able to decide which one I like the best without trying it out myself but it was still great to see your experience, you secret photography agent :)
I usually avoid taking photos of people because they change their mood when they realize that you're taking a photo of them but doing it secretly sounds like a great idea, so thank you for the tip! :)
Congratulations on your curie vote!