That doesn't look like SimCity at all - is that a mobile game? There is a separate forum for SimCity BuildIt http://answers.ea.com/t5/SimCity-BuildIt/ct-p/SimCity_BuildIt I have a feeling that is the game you're playing.
I don't know how any SimCity 2013 game could be made to look like that, other than offline modding. It is within the terms of service to use mods in the offline version, but if that was the case, you wouldn't be able to see someone else's city.