Featuring the Intro Essay concept sounds like a good idea. Considering the magazine might at most appear quarterly, in three months there is a good deal of nice essays. A selection of fragments might be nice, and give an outline of the reasons why people approach entheogens. Try to express the diversity and at the same time the unity of the community.
We might add too a fixed space of up-to-date online links and resources, like a little directory. And perhaps a page of news (scientific, social, legal...)
For the ethno garden section, if that's ok, it just makes sense to write something about jurema. It's an easy plant to ID and grow, and she deserves some lovin'. Tricky to keep it under two pages, because it would be nice to have a 1/2 page piece written by a user who has a good relationship for the plant introduced. Iracema would fit great here. Or jamie.