Ok..some progress, but still a lot of concerns here. I'd really like to see you play shorter sets. You've really played on quite a bit, so it's harder to manage the mistakes.
So now I must sort of balance between explaining what I see wrong here, as well as what should probably have happened by now.
First, a couple of visual aides:
Below is the Culture view. You can find this option by clicking the globe at the bottom right - above the min-map - and then the culture button
. This views allows one to see culture borders of the AIs, even when they are not clearly visible on the normal map. Just something to keep an eye now and then during the game, especially early when scouting is limited, as this gives you an idea of the proximity of the AIs. For one, you know areas that are relatively safe as cities are near. Also, you know how close the AIs are in terms of settling patterns.
Next another view of the map in which I noted areas of concern for barbs. These are areas that really should have been spawnbusted by now. The warrior on the forested PH to the E is in a good position. The one up north is okay, although note that as your cultural borders expand outwards, you might adjust your spawnbusters to get more coverage.
So it's a balance of that 5X5 spawnbust rule, and what tiles are actually clear and safe.
So now to note the concerns...
1) Aesths probably ok. Again, it's a good bargaining chip for trades. I still might have gone Maths here though. (Note: To trade Aesths for Alpha you may need to put a turn or two into Alpha, unless you have another small tech to balance the trade)
2) York should grab the copper now since you just whipped off London. Always manage the micro of your cities each turn, especially early on to get the most you can out of what you have. (Again, now you hopefully see the benefit of overlapping these cities)
3) You seem to have a lot of gold. I assume you run 0% research for some turns to accumulate gold to fund Aesths, but you appear to have overdone it. (oh..you have huts on so may have nabbed some gold from huts..not sure..keep in mind that huts really benefit the AIs more than you on this level) But you did not have near that much gold at the last report, so probably most came from running 0% research.
So really it appears you should have run 100% research sooner. Try to do a little math and get a feel for when to fully fund research.
4) So, my concern is that I would expect a bit more here than I see. You need to try to work in some more warriors while you can build them. You axes should be outside or on the edge of borders. Like one moving south to keep that bad area safe and maybe the other closer to the barb city. Archers may start coming from that city. (shame that barb city is there but not a bad place really and you can take it later with axes)
5) York's granary does not appear to have been optimized. It appears that the city just grew but is not getting the growth it should have - at least 1/2 full. So it was not finished at the right time.
6) Workers - some problems here. It's okay that a couple of FPs have been cottaged, but don't overdo the cottaging early. You still need to chop forests and have something for cow/ivory to work. You are still in expansion mode now, and there is lots to do besides cottaging every tile that cities can't even work yet.
7) Library in London is okay, but I would have like to see another worker and settler by this point. York could have done some of this sooner at the expense of the Library for now...plus you would have had chops in York and London as well to help them along.
Good news, is that your economy is still quite good with your compact empire, 2 or 3 growing cottages, and the foreign trade routes with Boudi. Check city screen in top left to see trade routes, and notice the difference between internal trade route yield and foreign trade routes. Trade routes = commerce, so the same outputs as cottages and gold. You are making 29 gpt at 0% research which is great. If you settled cities way off in the distance, it would choke your economy - it's even much worse on Deity.
Note that you can also get Settlers out and get them in position, but not settle until you are ready or you see and AI threatening that spot of a settler of there own. Just something to note.
So now with granaries you can 4>2 or 6>3 whip settlers or 4>2 whip workers. You can get them out very quick. 4>2 whip settlers benefit from a forest chop to speed them up. 6>3 whip settlers can be whipped after one turn. (Note: Imperialistic trait impacts this)
So to summarize at this stage, you seen the benefit of a compact empire and city overlap but still many things could be improved over your last session. It's really about finding a balance in things and being aware of how each decision you make impacts the next one. Like having workers build improvements that really add no value currently, since they can't be worked anyway.
The next big thing is starting to analyze your production bar in the city (below food bar) as well as the overflow hammers you get from whipping stuff, as well as passive overflow from completing things normally.
edit: Oh..and open borders with everyone you can. The only time you might not is if you see AIs with Worst Enemies. Always note when there are Worst Enemies (WE), and also that that sometimes changes frequently. So really you have to make a judgement call in that case. First, open borders helps to build up diplo, not to mention eventually trade routes. However, OBing an AI with a WE may make the WE ask you at some point to cancel relations. You can decide not to, but either way you will take a diplo hit with one or the other depending on what you decide. Ofc, Diplo in general is not something we've discussed much with you yet, but it becomes far more important to manage it well on higher levels, as AIs can be more aggressive - not just including the AIs that are already so inclined like the psychos. We can go into that more later, but based on what I see in your save there are no WEs so no reason not to OB with everyone.
edit2: Again, I'd like you to backtrack here a bit I try to do things a little differently based on what I've said, and also stop sooner for a report.
And later I definitely would like to see you stop and report as soon as any AI gets Alpha.