(As yet unnamed) Building a believable conworld

[NadirtheFox]

Sorry for the long time to produce any feedback.. Hope you are still around, because your work with g.plates produced a really nice output.

I am glad you like it (Also it takes ages for me to produce any progress so take your time and don't worry about it) But topography has to wait because I have just "finished" working on coastlines (like literally an hour ago) and there are some... questionable areas:
Conworld updated.jpg
My biggest concern is northern part of Nur. I decided to break it to give it more interesting look as well as more natural borders but my question is: Is it feasible to have this big inland seas in area undergoing orogeny without having to explain it by some weird tectonics? My thought was that they formed in basins formed during glaciation - much like Baltic sea and Great Lakes - but it feels unlikely because this region is probably experiencing serious uplift thanks to previousy mentioned orogenesis. I am thinking about flooded downfolds/synclines but I doubt they can be this big.
About the rest... What do you think? What should I change? I will be probably reworking fiords in nothern Eastland (because I feel like I have lost snese of scale while working on zoomed in area... At least compared to southern Australis) but is there anything else that needs to be fixed? Also I am curious wheather you like those new coast in general (And yes: I mooved Australis west a little bit, reworked island arcs and "flipped" southern part of Tropica, because the way it colided with the rest of this continent was really bothering me as it felt a bit far-fetched)

[Mapsburgh]

I think the coastline of Nur could be explained by the accretion of old island arcs and terranes -- basically you're smooshing a bunch of micro plates between the two big ones that are converging, and they're not all the way smooshed into the mainland yet.

[Charerg]

I can't believe I missed this thread back when it was originally posted! Anyway, just saying that this is some pretty amazing stuff so far. I like the land shapes a lot, and the tectonics model was pretty top notch. Sorry if I'm a bit late to the party, but here's an answer of sorts to your latest question.

My biggest concern is northern part of Nur. I decided to break it to give it more interesting look as well as more natural borders but my question is: Is it feasible to have this big inland seas in area undergoing orogeny without having to explain it by some weird tectonics? My thought was that they formed in basins formed during glaciation - much like Baltic sea and Great Lakes - but it feels unlikely because this region is probably experiencing serious uplift thanks to previousy mentioned orogenesis. I am thinking about flooded downfolds/synclines but I doubt they can be this big.

Looking at Nur, I'm not sure where the orogenesis is taking place. Or which way the plate is moving? I assume there's a subduction zone to the north of Nur, but there could still be a back-arc-basin there if it's a "retreating subductive margin" (Nur moving away or sideways from the subduction zone). Think the Asian margins of the Pacific: lots of almost-closed ocean basins. And depending on the tectonic history of Nur, it's also not impossible to have old back-arc-basins (the Black Sea), even if it's an "advancing subductive margin" like the American margins of the Pacific.