Okay, Sara, this one's for you. I can email you the jpg file if you like.
I tried to blend Alluvial Fan into the background and she came out with more glow than I intended. I hope she doesn't look like a ghost. I'm afraid my pirate isn't quite as cute as the one on your site, but you should have seen the other choices.
If you have requests for changes or had other ideas about what you wanted your cover to look like, that's fine too. Don't be shy, let me know. :)
If anyone else would like a cover for non-commercial use, feel free to let me know. (And, hey, if you want one for commercial purposes, that's cool too, email me.)