This is an Improved version of the old artwork that I created,
The scene only consists of three spheres,
The first is flat, for the land,
The second has volume, for the clouds, since volumetrics proved to be good for clouds,
The last, which I will improve in the future is also flat and is there for the atmosphere.
The Planet is micro-displaced by diferent noise, musgrave textures usind adaptive sub-div.
The Clouds are powered by an array of different noise textures with three different sizes, two textures for one type of size, that plug into different colour ramps, math multiply nodes then finally to mix RGB set to Add and then to the density of the volume scatter node.
And finally the texture created a heart. 
