I don't know if a topic like this has been posted but since I have not seen it here I will. Basically the idea is you take an art piece you liked and redraw it and see how much you improved. To show other people you can put it into this chart:

http://oi60.tinypic.com/ftzfh0.jpg (not my creation)

Then feel free to add the dates maybe under the picture. I thought it would be a nice way for people to feel accomplished with what they have done. Even small improvements are still improvements ^_^.

(I did it awhile ago I might post mine in a bit. Anyone else is free to post theirs on the thread if they want)