I REALLY need someone to confirm that unwieldly artist name is actually correct.

It's ヨシタマ＠企画絵待ってるヨ!! in Japanese.

Okay, so long as it's correct and I didn't screw up on it or anything, then that's good enough for me. Thanks for the confirmation, anonymous.

Yeah, it's the right name, but just Yoshi Tama will do.
The full name might help as an alias, though.