Hi @ all.
I did this a few times already, a terraformed Mars. But this is the my most recent one. One with which I'm really satisfied. And since I created it using public data and maps, I make it also public available.
This is Stock. It's free to use in every form you like. The only little thing I'm asking for is: Please link to this post and give me credit.
Beware, the file is 18mb heavy. Inside the downloaded archive you'll find a 4000x4000 .png and 4000x4000 .jpg.