You can find Juan Santapau at The Secret Knots and at @santapau.

THREE PANELS OPEN is an open invitation.  Perhaps you’d like to do one.  A comic that is three panels in duration and 640px wide.  I’m only going to run the ones I like best, I’m afraid. However, there’s no time limit on submissions.  You can email the image to warrenellis@gmail.com, and please include your name and the website and/or twitter account you’d like it to be associated with.

It would be really nice if more women were sending comics.  Or, indeed, if any women were sending comics.