I used this as a lose reference in Where Goldfish Came From and I am also offering prints of this. If you do not want this reference used for prints, please let me know so that I can disable it. Thanks!
Thanks so much for the credit but there's no need to ask for permission on prints. I'm pretty sure when you use a photo for reference only, legally you don't need permission. Unless the photo is of a copyrighted subject.
It's a awesome piece, I hope you sell a gazillion prints!!!!