Look I think the graphics are fine. Instead of making the graphics look fancier, how about making them look unique. By this I mean make units from America look different from units from China. Maybe make an american frigate be a 2 masted sailing ship, and one from china look more like a Junk, with triangle sails. Make each culture look unique, but still have the same stats. During the American Revolution Both sides had musketmen, ours wore blue coats, british wore red coats. Something like that I think would make the game 'look' better.