Created with World Painter a great program that i recently discovered. 
This version represents the planet when it has oceans, i take the liberty to give a touch of live.  
I've done two versions of Mars, this is the small one, done with a heightmap of 2mb the big map is done with an image of 17.3 mb. 
This versions has a les details but is also more accesible cause the big one is really really big and you can  spare some time to cross it.
I edited the map like an "island" cause i hate the maps that finish with a straight cut. 

You'll find all the reeal emplacement: Valles Marineris, Olympus mons, ascraeus mons, Pavonis mons, Hellas planitia agryre planitia etc... 

To take the photos i use the shaders mod and the texturepack is Summerfield. But when i play i use the OzoCrafttexturepack cause it seems more arid... 

Hope you like it, right now i'm working on a special version of Mars :D