1.Roads (Railroads?) graphic look fine, maybe could be a little thinner. Roads probably increase trade, like Civ2, which explains their abundance... but doesn't justify the massive twisty ugly spaghetti layout at all.
2.Small World Map has it's problems, but it's the Huge World Map I think most are concerned about. I agree the Black Sea should have an out too. And I do hope on the Huge World Map they didn't leave out the South Pole!! I plan to build my glorious empire there...
3.The Fred Flintstone Mines can definitely be improved.
4.City graphics are fine.
5.Mini-map & city borders are fine.
6.Irrigation scratches need work. They should not have shore-line color water for the irrigation scratches since it gives the impression they are standing on paper-thin land. Should be a darker blue.
7.The too much terraforming (if you believe that's the case) can easily be adjusted by simply increasing the amount of time (cost?) it takes to terraform.
Finally, chances are the Huge World Map will not be up to everyone's expectations. Is there a team assembled yet to work on improving the Huge World Map? This way no one gets their home territory or area of expertise done wrong. I think that might be a better solution than 20 different versions each missing something.