Actually, it would be possible to see the Milky Way in Dubai during a foggy night, because the fog would retain the light pollution, so the stars and Milky Way (if it is above the horizon) would become much more visible. Therefore this composite is not pure science fiction.
However, the odds of getting a 'real' shot like this are very thin. Fog occurs 5 times a year in Dubai, the moon must not be visible, and the Milky Way needs to be above the horizon and in the right direction for the camera!
Could be an impossible equation to resolve! :)