Umm

Quote - Any person who, in a circumstance described in subsection (d), knowingly possesses a visual depiction of any kind, including a drawing, cartoon, sculpture, or painting

It does say possesses.  If you draw it, or render it, you possess it.

Quote - depicts an image that is, or appears to be, of a minor

That's the "anime" part of my original concern.  Most anime characters are cute, cuddly, and it's not a stretch to say they can look really young.

By law, minor simply means below the age of majority - which is higher than the age of consent in a lot of cases to boot.  So in theory, you could render an image of a 17 year old having sex, (an act which would be legal if they were real people), but still come under the law.

Nitpicking?  Sure.  Lawyers live for nitpicking - especially prosecutors.

Oddly, I don't see anything regarding nudity in the quoted section(s) though.  Maybe "Obscenity" is supposed to cover that?