Four different Earth-like planets.

pngrendered.zip - rendered planets.

pngtextures.zip - planet textures.

xcfresources.zip - GIMP *.xcf files with glow, planet, shadow and background layers.

As a Public Domain, this work does not need attribution and can be used in any way possible.

But if you have the opportunity and my request does not cause you any inconvenience, I would ask you to subscribe to my page on https://www.facebook.com/cogitollc and/or https://twitter.com/cogito_llc.

You can watch a short video from one of the planets I created on YouTube. 

Thanks and see you soon.