Scrum Diagram RFC

I am working on a book chapter on the Morgan's Raid project, and I suspect that a visual representation of Scrum will be of value in explaining how it works. Specifically, I desire an information graphic that illustrates how we specifically have implemented Scrum. The diagram in The Scrum Primer is good but probably overly complex for the intended audience of my work. The CC-licensed one on Wikipedia is too general.

Here is my sketch (CC BY-NC-SA):

Grey boxes represent artifacts and data transformations. Blue boxes are meetings, and blue paths are "human paths". In a sense, I am trying to overlap a data flow diagram with a control flow diagram.

I welcome comments. I'll need to have something finalized within a week, and I'll plan on sharing the final result here, along with a summary of comments if they're received by email instead of posted.

UPDATE: Based on some of the comments, I made this alternative (also CC BY-NC-SA) that shows the data path from the Executable Release (nee Potentially Shippable Product) to the Sprint Review.