Well some bad news, it doesn't look like I'll be able to post these works once I'm done with them, at least not in the near future. This is a reply I got back from my request:

"We are currently not at liberty to provide you with this information. We are
at this time participating in sensitive negotiations. Your request is,
therefore, not timely made and, as you know, you should not post any such
derivative artwork without receiving permission. If you would be kind enough
to contact me again in two months time, I might be in a better position to
provide you with more definitive guidance. Nevertheless, may I add that as a
general rule posting such artwork would not be permitted. If permission were
granted to you, others who have similar requests would seek equal favor.
Because of the general availability of this work to the public through on
line display and downloading, Ms. McCaffrey's commercial rights in her work
would be diluted, notwithstanding that you have no commercial designs. We
have no objections to your utilizing and enjoying your creations for
strictly personal use, but once it becomes generally available on the
internet, it becomes a problem. Our attorneys have strongly urged us and our
licensees not to grant permission to these kinds of requests. In any event,
please contact me again in two months or so and I will, hopefully, be able
to provide you with more definitive information. We appreciate very much
your interest in Ms. McCaffrey's Pern novels. I am sorry I could not be more
encouraging.

All the best,

Alec Johnson,
Webmaster, The Worlds of Anne McCaffrey"