very awesome, would be lame if you gave them up. oh that pen tool thing. then very nice use of the pen tool, it looks lovely. I especially like the 'ribbon' looking parts that have the hard edges but fade out, they're all shiny.
And would you maybe be up for doing something like a wallpaper pack where you could release them in various colours - just tweaking the hue in PS? I think that would be awesome for like Windows 7 that does the desktop slideshow. Just going between the different colours.