One final note
On Copyrights and Permissions.
Observance of copyright is something artists, workshop facilitators and art teachers now try to raise awareness of.
What is a copyright?
Copyright is a law granting the creator of an original work the rights over his/her creation. For artists, this means they own not just the original artwork but the image of their artwork as well. This is automatic or is assumed the moment you finish your art but if you want legal documentation to support your claim, this is possible also through patent offices (not cheap). When artists sell an artwork, they are only selling the physical work. The right to the artwork image remains with the artist unless he/she also opts to sell the license to copy which would allow others then to use the image for their own purposes. This is usually done for a very good price.
On limited copyrights.
The above demo, which I made specially for those interested to paint this as a learning experience, allows the followers to paint or do a version of this painting. Most tutorials or workshop pieces where students or followers copy an original painting fall under limited copyrights. This means, it is ok to copy for learning purpose, perhaps display at home, gift to friends, but may not be sold or the piece entered in contests.