Helloes!
I have used your lovely stock in a manip for my Photoshop class, posted on the course blog
here.
I think I've followed the rules correctly, but if I've done anything you're not happy with, please do let me know and I will be sure to fix it. I'd like to be respectful and all! A little bit of info--the Tulsa Zoo logo has been used on this because the assignment required it, but this is not for profit or anything, just practice. My professor is trying to teach us the sorts of jobs we might get in the real world.
That said, thank you so much for what you do! I look forward to seeing more.