I am also interested and pretty well informed about this area and time. I also have a great interest in ancient Anatolia (now Turkey). The whole region from Greece to Mesopotamia is quite fascinating, and this is a pretty fair rendering of it. Very excited to see you working on this!

Sadly haven't had time today, but I'll play with it tomorrow.

Yes I rather like these hills. They're in the Ancient Realms catalogue, in case you don't recognize them. This is my second map with that style, and somehow they escaped my notice in the first.

Another update. I cleaned up the rivers and added hills.

I found the effect, edge striping. I've fiddled with it a bit, but not sure which way i like it. I think I'll wait till the map is done to decide.

Rivers and mountains pretty well done, though there are still some problems with rivers running through mountains and connecting to other bodies of water.

Upload without the edge striping for comparison.