I am currently taking part in Noah Bradley's online course. The first week's assignments focussed on master studies, more precisely 50 3-value composition studies, 50 simple colour studies, and 3 full master studies. I didn't get everything done in time, but here's what I did.
And a full study of "Mount St Michael" by Clarkson Frederick Stanfield:
And lastly, here's a gif with some progress steps: