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Episode 2:
I am not sure about the art-style, since it feels inconsistent somehow, especially the lighting effects, but otherwise it looks like one of those anime, which you can watch while disabling your brain and relaxing. Something akin to "Tatoeba Last Dungeon Mae no Mura no Shounen ga Joban no Machi de Kurasu Youna Monogatari"
Episode 3:
I do not like how they change color schemes. I do not see the point in it. And I think that OP music does not match the visuals, too.
Otherwise, it's still cool. Will be great, if it's able to keep the same pace for the whole series.
Episode 11:
Season 2. When?