Now that SGOTM is over, I finally had time to take a look at the file.
Things seem to be going well. Marble should be sold (as was suggested). We are lucky that HR is the favorite civic of both HC and Ragnar. That should make life a little safer... (let's hope

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Ragnar may well peace vassal to Huayna, just as soon as HC gets a hold of Feudalism. I would personally trade with Ragnar for several useful techs ASAP, before he researches CS/CoL/Literature for himself. I myself would prefer Metal Casting + Sailing > Feudalism, but the latter would provide the safest defense against a backstab, if that is a concern.
I know that we are not in OR, but I still don't like to build Wealth when there are so many useful buildings available. Most cities would benefit from a Forge; several (like the capital) from a Baray; a Buddhist Monastery would also help in the capital, and Missionaries can spread the word to Uzbek and Rustenberg (Uzbek is, btw, running two Scientists in Pacifism, but without the 100% GP boost due to the absence of Buddhism). Coastal cities will OFC need Lighthouses in 5-10 turns.
Have you considered settling 3E of Amphibia, or 3N of Awesome Venn? There seems to be a (mediocre) filler city spot just waiting to be settled, and there are Forests present to chop infrastructure. Food can temporarily be borrowed from surrounding cities.
Did an AI on the other continent reach Music first? Although we were the first to Philosophy, I am still a little wary about the Lib race, since Buddhism/Hinduism/Judaism were all founded on our continent whereas the other continent seems to be experiencing a Confucianism love-fest.