I've always admired people who have the patience to do challenge runs like these. I rarely have the patience. Maybe you could try linking your posts together a bit? This is the first post I'm seeing from this journey and I had no idea what was going on without going back through your posts. Maybe if you summarize your journey so far at the beginning or add links to the earlier parts of the adventure it will be easier for people to get into. People have very short attention spans so if you want more people to read, and thus end up voting, for your posts I recommend making it easy for people to get into.

And, if you take the time to read, comment and vote for other peoples post that will also pull people towards your blog. Those favors often get returned.