Okay, so this artist's name is 須賀晶 (Suga Akira), and there's an artist suga akira we already have. According to the URLs and artist history, the latter had a twitpic (and therefore a twitter) @suga_akira in 2013. However the current @Suga_Akira joined Twitter in 2017. Therefore it is impossible for them to be the same twitter account, and unlikely to be the same person.