I have been going off of the idea that the next phase is going to be a redirection to a video, another image, or a random website.  This is what I think the next step is going to be some sort of transposition on the remaining plain text alpha numeric and/or decoding of the dots.  I have been trying to reverse engineer the process in creating the drawing.  thinking about what I would have control over to change that would still allow the drawing to maintain integrity and coherence.  The things I would not have a problem changing would be letters/numbers, and location of dots and possibly an embedded message in the background colors... this is a really fun puzzle.