I created something like this about 4 years ago as well but wasn't as well received I did see the post you are talking about on boredpanda. I loved that post it was very creative on how the fight progressed outward and the length he did. Longest I did was 31 days for december. If you like this please check out the advent christmas drawing on my facebook page it was in 2014 so a long time ago but still worth a look. Thanks for your comment the love and encouragment I have received it something I will cherish.