Artist Study (assorted)

One of the subjects I feel very comfortable "subbing out" is Art. My children seem to possess a drawing and painting gene that I don't have. Or, maybe they just have a good instructor? At any rate, we would be lost without their Art Teacher who has a wonderful way of teaching art.

Her technique is to:
Review the biography of the artist,
Discuss their famous works
Learn about the technique that made them famous
Reproduce one of their works

Can you guess which artists are portrayed below?

We are in the final 5 weeks of our art study for the year.  I will try to do a better job keeping up!