Thanks, I should have looked a bit more to find the true source. The thing is it's not even a retweet but more like Yu Suzuki has uploaded it to his own Twitter thus this is why we can see it among his personnal photos and videos (and the artist didn't name Yu Suzuki's Twitter account to share this pic either).
I hope they'll leave refreshers and/or rerelease the first two games, though. It's been years since I played them seriously, and although I remember a lot of the story, there's a lot of details and plot points I forgot, especially since my Shenmue II discs are too messed up by now to be readable (Hurts so much just saying that... T_T)