Thanks for the feedback, guys

I've looked into the
EB map, looks like they've also decided to go for the "split Oxus" route but the river passes through further north. I think I'll go with that idea, as I've now seen it repeated on a few maps. Here is what I have now, with the river map overlaid and some key provinces labelled. I'm MUCH more satisfied with this one, now I'm just considering adding more steppe provinces to provide some barbarian harassment to the Seleucids' northern border.
And, while I was at it, I decided to revisit the Indus region and added a few cities that are mentioned in Alexander's campaigns. Still some work to do, but the India zone is more or less ready.
