crowdfunding | Two pieces of artwork in crowdfunding (Reply)

I've got two sketches currently in crowdfunding, one with $5 increments and one with $2 increments.

How does crowdfunding these sketches work? Each donation sponsors additional work on the piece, and the patron who donates the most will receive the original (by random draw, if there is a tie!). Those sponsors who don't win the original will receive an ACEO print of the finished piece. I will also pick randomly among people who link to the post to receive a free ACEO print of their choice of the two pieces. (Let me know that you've linked!)

You can see the current progress (and old versions!) of these two sketches, and a recently finished piece, in my journal, here: http://ellenmillion.livejournal.com/1232763.html