Nice work. Keep plugging away at the mountains and you'll get something you like.

I'd lose the distributary on the Nyllahatchie River. Yeah, one can occasionally see such an arrangement, but it's almost always temporary, or man-sustained. In general rivers join but don't split. The splittiness of your deltas is okay, but don't think of a delta as 'something that happens to a river as it nears a coast' - rather they are 'something that happens to an ocean as a river hits a coast and drops sediment'. You *could* have a delta that started in a bay and just coincidentally filled it up and creates a bit of coast in line with neighboring coast, but it isn't very plausible. Better if a delta sticks out some.

Candacis' tut, eh? I gotta work through that. This historical map style is one I'd like to be able to carry off.

Well done - I look forward to seeing it progress!