Red and Black modelling paste
A Work in Progress - the Art Blog of Sharon Kennick
Organic Effects with Vivian - Two Peas in a Bucket
Artist Sabine Belz: Abstract Acrylic with modeling paste Part 1 of 2. The actual tutorial (not of the "flower" picture) begins at 2:10. Sabine speaks German, but the tutorial is all visual and very easy to understand. Great artist, great teacher.