Crossing of the River Styx

It's designed to be a city that's been flooded by the waters from the River Styx, summoned by some really quite insane cultists.
This map's been a week or so in the making, because I've been leaving it and then coming back. I think it's pretty cool as an end product - it's designed to be a city that's been flooded by the waters from the River Styx, summoned by some really quit