Mobile MMO for Android about zombie, weapons and politics. Draft. Need help.

[_MoRLOK_]

Hi all! 8 months designing the game! (MMO) here are the results of the development of graphical style! Want to hear criticism or advice on how to make everything even better. Thanks for the help. 





This test I used 3 months ago to select a color range 


How to make these sprites even better? Where errors in graphical style? 


And I need help and advice as the finish city map 

I will try to respond to every message;)