The dry, limestone-dominated world of Cenote
http://www.orionsarm.com/fm_store/Cenote.zip.
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This one is 3075 ly from Sol, and I added a few smaller stars nearby, together with planets. The textures for Cenote are in this .zip, but to see the textures for most of the other planets, you need to download the three main OA download packages, which have lots of textures in them. I've been experimenting with swapping the clouds and rings around, and using oblateness, blendtexture true, mie scattering and the colour of the local star to make these older textures look different in each system. The possible variations are almost endless.
See the bottom of this page for more details:
http://www.orionsarm.com/eg-article/491c2e73c4188