Who drew this? Japanese or American?

Wikipedia said:
Transformers: Armada was written and produced in Japan, with creative input from America (the Japanese originally envisioned the series as set in the G1 continuity, but this idea was discarded by Hasbro, who also mandated the inclusion of Unicron, who had not been in the original story treatment for the series). However, the show premiered on Cartoon Network's Toonami in America before its original Japanese counterpart had aired - the result of an unreasonable production schedule set by the network, which caused the series to be rushed out of production. Consequently, Armada features a lot of unfinished animation (which would go on to be perfected for the completed Japanese episodes), and a hastily produced dub which features many errors in naming such as Sureshock being repeatedly called "Grindor" in multiple episodes, Hot Shot being called "Hot Rod", and Optimus's Mini-Con partner Sparkplug being called "Leader-1" (the same name as Megatron's Mini-Con), as well as transliteration and nonsensical dialogue which does not match the action onscreen.