Regarding prospective Settlement, I like your Sites 1 and 3 (obviously!

), but now that I see 2 Fish near Site 2, I'd be inclined to move it 1W onto the Hills — that's still on the river, but gets both Fish immediately, rather than 1 Fish + 1 Whale
eventually. Moving Site 2 would also free the Whale for exclusive use by Site 4 (eventually!), though I'm also not really sold on Site 4, except as an additional town towards unlocking our FP.
With 6 towns planted, and 2 more coming soon, we should probably also start thinking about that — but I can't remember offhand the OCN for a Large map (I know it's 20 towns on Standard, and I
think it's 32 on Huge, so... maybe 24 or 26 on Large, i.e. we'll get the FP-popup after founding our 12th or 13th town?).
Regardless, before founding on your Site 4, I would still rather send Settlers to found NE along the river (no Ducts needed, and good growth potential and river-commerce, even prior to Republic and full tile-improvement), because one of those towns will likely make a good FP-site at some point — not to mention good rallying-point(s) for attacking our first target (Korea?) — so founding in that direction seems like it should have a higher priority than founding a(nother) dry coastal town (Harbour + Duct just to reach Pop7, plus a Courthouse for decent productivity, since it will be second-ring at best).
Related: Is the current Barracks-build in Tabriz just a placeholder? Food-supply is going to be something of a problem there (also Ulaanbataar), so a Harbour would seem preferable (and then Galleys rather than land-units?) — but for that we will need Mapmaking. Is there any possibility of getting hold of it anytime soon? Or, if we want to wait for Dora to sell her monopoly (and make it cheaper for us to buy/trade), is it worth switching Tabriz to a Temple/Granary already, to give us a bigger shield-bank buffer?