Try Karen Sperling's Artistry CD's.
The Artistry Painter 6 Tutorials CD has some tutorials using watercolor.
There are other Artistry CD's too, that you might also want to check
out:
Another watercolor tutorial:
http://members.tripod.com/%7ESilverDragonStudio/angel.html
Though I'm not a watercolor expert myself, I've read other artists
comments on the subject and they often say that they use various other
Painter brush types, not just the Water Color variants, to create a
watercolor painting.
Experiment with various brushes, all of which but the Water Color brush
variants can be used on Layers (Water Color doesn't work on a Layer), in
combination with Water Color brushes used on the Canvas to see what you
can come up with. Painter offers so many default brushes and variants,
and allows you to create endless numbers of custom brushes, vary color,
opacity, degree of paper grain (texture), and so much more. You should
be able to get any effect you want.
Also, try using Composite Methods: Paint on a Layer, then in the
Controls:Adjuster palette, try several Composite Methods from the drop
down list to see how they affect Layers and the Canvas below that Layer.
Hope this helps,
Jinny Brown
http://www.pixelalley.com
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