Has anyone watched any of these? The sample looks good but I'd like hear from someone that may have seen more than just the snippets they are showing
https://vimeo.com/ondemand/warren01
Robert Warren -Alexander Master Artist
wybnormal I’ve never seen those before and several look interesting. Hopefully someone can provide more info. They appear pretty detailed to present in less than 30 minutes.
I just bought a couple from Alexander Art that are not on that list. I'll give one a go and see what I can do 
This is one of three I just got to try
https://store.alexanderart.com/collections/dvds-downloads/products/contemporary-iris
- Edited
wybnormal Neat, I’ll be interested to hear about the instructor and see your results.