This looks great and almost professional-like for a fanmade artwork.

MisaoFan said:

This looks great and almost professional-like for a fanmade artwork.

I had the impression this is the professional artwork.

MisaoFan said:

This looks great and almost professional-like for a fanmade artwork.

i do believe this is an official magazine artwork

LambOfGod said:

i do believe this is an official magazine artwork

Hm, well I have to say that I find it much better to use fanservice this way, rather than getting in the way of the actual show.

According to this blog, artist's names on the top left are fake and this is just a fanart.
See also Shirobako's official twitter: [1] [2]