xwt architecture diagram; need graphic design help

So after much thought, I think I can describe XWT in three slides to
the point that people will "get it".  Here they are:

  http://www.megacz.com/tmp/xwt-architecture-1.png
  http://www.megacz.com/tmp/xwt-architecture-2.png
  http://www.megacz.com/tmp/xwt-architecture-3.png

It would be really cool if somebody (Jayson?) with far more graphic
design ability than myself could make three really nice
diagram/image/slide thingies out of these.  These three slides will
probably get used a LOT in the future, so a fairly small amount of
effort spent making them look attractive, organized, and easy to read
will go a long way in terms of getting the word out about XWT.

Volunteers?

  - a

PS, the sequence of arrows on the third slide is important (especially
    the loop on the end), but their relative position is not; I just
    crammed them on the page wherever they fit.

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