I took a look at your game, and here's some quick suggestions. If you want a more in-depth analysis, it would take me some more time, but here are some things to work on:
1) You're playing on a huge map, and there's tons of open space still to be claimed. So why aren't you producing settlers left and right to grab all the land? Devote at least one, probably many more than one, cities to producing nothing but settlers. And, more importantly, build granaries in them first so you can get the settlers out faster. You're already in 10th place in land area, and that's going to fall if you don't go out there and grab the land while it's available!
2) Too many cities are working on wonders! Why are you building the Great Wall in a small size 6 city? Is there some purpose to this? Rishon Le Tzion would actually benefit more from a granary, acqueduct, or temple than the Great Wall. Jerusalem should drop the Hanging Gardens and focus on building things that will help your civ more. Hanging Gardens is great, but increasing the lux slider can do the same thing for a small amount of gold. That brings us to...
3) Use the sliders properly! You've got the Great Library, and you're doing research?

The whole point of the Great Library is that you DON'T have to do research, that you can sit back and let the AI civs do the work for you while you build up lots of cash! I would go to 0% science right away. And you need to increase your luxury rate too: Jersualem is building a wonder and running an entertainer? That's not smart.
4) Workers. Workers, workers, workers. WORKERS! You need more of them. 7 is way, way, too few for a huge map with 12 cities. You'll need well over 100 for a map this sized. Your cities have lots of unimproved tiles needing worker attention. Definitely build more of them, preferably in high-food, low-shield cities. And try to build workers in cities that have granaries too!
Good luck, I hope that these things give you something to think about!
