In addition to Sirian's comments about images, there's a couple that aren't loading at all, like the 3000BC.jpg image.
Yes, a city cultural victory was definitely a challenge - you're the only one to have tried that so far. Entremont wasn't a horrible site to try for it - it could make 15 shields even in despotism. That was enough for you to get five ancient wonders including the Great Library? Very good, of course.
The lower corruption of Fascism is irrelevant for a 20k cultural victory. For speed to 20k, you're probably better off saving the two turns of cultural production by not revolting. It didn't hurt anything to try it out here, but the government really isn't that useful. It's probably most useful when trying to come from behind - use the elite spies to steal techs and the worker labor to slap down rails really fast.
Now that we have engineers citizens, start cutting the trees on plains (and even on grass, hoping for bonus - and there was one under Entremont forrest!!-) as we want more population
I didn't even think of that! I kept the forests until the end, and I think so did most players. But you're right: the food from an irrigated plain can support an extra civil engineer specialist, thus making up for the shield difference between the forest and plain.
And yes, policemen are strictly better than engineers with the multiplier buildings in place. Some players didn't realize that either.
525 science in one city - wow. All that wonder tourism, multiplied by all three double-science wonders, really added up. Wow again. Must've been even more before the Colossus expired.