Thank you for putting this one together, kcd_swede!
Barbs are enabled and thus I would recommend keeping the Scout close to home for any Unit's 2-square-radius, Barbarian-spawn-busting ability.
What good is it to meet an AI early who might just decide to plot war against us? An AI cannot plot a war on a player that it has not met.
Meeting AIs later also makes diplomacy easier, as there will be less turns where we weren't being nice to an AI if we had not yet met that AI. AIs start counting from the turn that we met them as to whether we've been nice to them, or not. It's harder to be nice in the early game when we have not unlocked Open Borders, a Trade Network for Resource trades, or Tech trades.
Note that we have cheap Granaries and cheap Ikhandas, both of them initially costing us 30 Hammers, each.
Consider a Bronze-Working-beeline. Here's how I would propose doing it:
Complete a Worker, first. Farm the Flood Plains or else Farm an uncovered Food Resource. Only then build the Mine (a Gold Mine or a different Mine if we choose to settle on the Gold).
After the Worker, build 2 Warriors. Anything else can be built (or, more likely, partially built) on our way to City Size 3.
Keep the Scout nearby and use the Scout plus the 2 Warriors to spawn-bust the area, maximizing our chances of being able to peacefully settle 2 additional Cities.
Assume that there won't be any Worker-stealing happening and thus at City Size 3, build a second Worker! You will thank me, later!
Aim to have a Worker arrive on a Forest on the turn before completing Research on Bronze Working.
After researching Bronze Working, research Fishing, but put the first 2 Forest Chops into a Settler.
After researching Fishing, the first Work Boat can be quickly Whipped. The second Work Boat can be built more slowly, as we won't have a lot of Happiness to work with from the Difficulty Level plus some early Whipping, even with the +1 Happiness from the Gold Resource if we settle on the same River as the Gold (note that we would also be on the "same" River as the Gold if we chose to settle on top of the Gold
).
Try to settle City 2 near Copper, but lacking Copper, settle strategically.
One approach would be to settle to block off some land if there are AIs nearby. Another approach could be to settle close with some squares overlapping with the capital's big fat cross, to save on Maintenance Costs, to get Trade Routes up earlier, and possibly to share a Crab Resource if there aren't other good Resources nearby and if there isn't a threat of AIs stealing other future City locations.
The Wheel plus Pottery come next, for Trade Routes, for hopefully connecting-up Copper, and for cheap Granaries.
A Flood Plains square can be later Cottaged, if you have such a fetish, while still building an early Farm on top of it, first. Building the second Worker early on gives us extra flexibility with Worker turns. The early +1 Food from the Flood Plains square, again assuming no Agriculture Food Resources being revealed, will be worth the invested Worker turns.
Even without beelining Bronze Working, I'd build Worker-first over Warrior-first no matter what our other opening moves are.
If we choose to go for Fishing first, building a partial Warrior and then a Work Boat will give us quite a slow start. It really hurts not to have any Worker turns for a long period of time. I'd instead suggest finishing the Worker and then building a Work Boat, as the Worker can already start paying for itself quite quickly. With extra Hammers from settling on a Plains Hills square and from any turn where we can earn at least 4 raw Hammers, the Worker will arrive faster than its typical 15 turns. How many turns until the first Work Boat could be completed? Probably more turns than it would take to complete the Worker, and the benefit of the Worker is that it keeps improving the land over time, while the Work Boat's Hammers can only contribute to improving 1 square. Rushing to get a Netted Crab just to have a Food Resource for a citizen to work while building a Worker might help on some maps, but it isn't that great of a play on a map like this one where we have the Expansive Trait (the Crab's Food does not get a Hammer bonus), where we have a City Centre Plains Hills square to shorten the Worker's build time, and where we don't start with Fishing.
. It does seem to be potentially crowded map and that we can be sc****d without copper nearby.
. Otherwise stopping to sandbox is very hard, initial discovery is always the most exciting parts, before my hopes for doing well are crashed 
