I like this project, so I'm making you a national compiled map here:
https://davesredistricting.org/join/762f726d-cc79-4357-b034-0cd11f36025d(shaded by 2020 Pres).
Overall, I like the maps so far.
Oregon is great, I really don't have anything to complain about, and it seems to balance COIs, county splitting, compactness, and all that very well. Feels like quite a natural and logical map.
Wisconsin, I think you handled well considering it's not always a great state to work with. I personally would not pair Madison and Dodge counties in the same district, but in order to make the other districts work Doge County has to be a bit homeless, plus it obviously balances population good. I appreciate you not going out of your way to "correct" WI's geography problem for Dems; this should be about drawing good and reflecting maps nationally and overall partisanship should be pretty fair.
Maine is great cause obv no county splits, but if I were drawing the map from the perspective of purely COIs, I'd probably do a coastal-northern config that's basically a cleaned-up version of the current map.
In NH, I would've personally done a NH-01 based purely around the Boston exurbs or whatever you want to call it, having it shed it's northern portion of Belknap and Carroll Counties and instead taking in Nashua. NH-02 by default would be the rest of the state.
NC is always a hard state to deal with; it very much feels like you're playing musical chairs with communities as there isn't enough seats to truly represent each community distinctly. For me, I think district 9 feels a bit problematic, reaching all the way from Cary to the rural Sandhills. Personally, I would reconfigure 2 and 9 to be an sub/exurban Raliegh district with Cary, and then the Fayetteville+rest of Sandhills district. It may not look super attractive but it's miles better from COI. You may have to have 2 shed Goldsboro to 3 to make it work though. Charlotte is always weird cause you can either pack it into 1 district or do an awkward cut between 2 districts. I think what you did is fine
Iowa is perfect, probably isn't a better possible map.
And finally RI, I really wish there was a way to do a Providence area and non-Providence district, but I was playing around and can confirm it's prolly impossible if you don't want to split towns, so what you did is fine.