Hi Marvin,
Thank you for your reply. I have studied that demo a number of times. I know it would be so much better in person. The subtle changes from one picture to the next are almost to subtle for me to see.
Yes, it did take me a long time to get that engineering degree . . . for all the good it's doing me now. But that's a different story.
Believe me, I'm trying to get to your workshop and I've e-mailed with Haleh regarding this. (Oh, did you mean your workshop when you said you could recommend somebody? You're too subtle!

) My biggest obstacle is that I have 2 kids at home during the summer so it's hard for me to be away for a week. During the school year when they're in school all day would be easier for me to disappear for a week, but alas, I don't believe you offer any workshops during the school year. I'm probably not the only potential student faced with that problem but since you teach regular classes during the school year it's probably impossible for you to offer a week long workshop during the same time. But I'll continue to work on it.
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Thanks again,
Joan