Just to make this clear, this isn’t a proper /m/subs project, we just offered them a slot on the blog and they said yes. This was done by Gunlord (timer) and Ametuchi (translator) from /m/.
Mozaika is a 4 episode fantasy OVA directed by Takahashi (Dougram, Layzner, VOTOMs)。I’ll be honest, I don’t know more, and it’s obscure enough to be a pain to find anything about it on the internet.
So feel free to take a look. It’s not pure mecha though, so don’t expect giant robots smashing stuff up.
First episode can be found here