Are those Deviantart users are the same person?

On my Deviantart account, I did a journal entry in February at https://stephdumas.deviantart.com/journal/Conspiracy-theories-matinee-732557427 about 4 users who seems to ask some requests who almost look similar, a bit too similar to my taste. You can check the links to their comments on my journal entry along with the archived links posted on Archive.is to compare  A bit too far-fetched to think of a conspiracy theory but still... you wonder if it's these Deviantart users are the same person who use alternate accounts? Here the Deviantart users in question: HanueFroequertoli, SondohHecarro, BetlavDerrai and CardoroEnbuler 

And just in case if he or they delete their accounts, here the links to archived copies of their account located on the Wayback Machine.
https://web.archive.org/web/20180503112847/https://betlavderrai.deviantart.com/
https://web.archive.org/web/20180503112955/https://hanuefroequertoli.deviantart.com/
https://web.archive.org/web/20180503112855/https://cardoroenbuler.deviantart.com/
https://web.archive.org/web/20180503112830/https://sondohhecarro.deviantart.com/