Shape of states is ok. One small meta-level suggestion is that I think it's better (one man's opinion, not fact) to have the big cities fit together on the map than have perfect geography of every state.
Example: New York is only 2 tiles from DC. Good geography but hard to see how NYC becomes NYC this way.
I re-did the city names for parts of the U.S. with my preferences in mind just to get a competing vision / idea out there. I figured Leoreth would have final decision.
I like these city names better despite them being less geographically ideal because they allow for major cities to fit together much better. For instance, Los Angeles-San Fran-Portland-Seattle and Miami-Atlanta-Washington-New York on each coast now fit together in a way that lets them each have plenty of room to develop.