2022 was the first year that I've started in March, making my 2021 2 months longer as a result - that's why the first artwork has a date in the 13th month. Every date you see after that is 2 months later than the month number suggests. That's why, for example, the Waluigi spread has the date 21.05, but the date that I've written down next to the title is July 21. I didn't get the date wrong while putting it on my website, I just wrote it down weirdly back when I first drew the artwork.