First just want to say the AI is way better now, empire kicks my ass lol The AI expands out pretty well and tries to capture resource territories pretty early which is great. I enjoy the diplomacy mechanics as well. but I feel somethings need balance.

I feel luxury/resouece deposits and nature reserves shouldn't add to the overall settlement buildings production. There are a lot of nature reserves in some places and filling them all is a huge detriment to production, same with luxury/resource deposits. I would also do an exceptions for projects such as wonders and holy sites.

Pollution is fine for the most part but I really feel the amount building give off needs to be reduced by like 25/50% or have nature reserves give a bigger increase in pollution reduction. Maybe both overall pollution reduced by 25% and nature reserve get a 25% increase.

Infantry taking 4 population or more is too much, feel it needs to be reduced by at least 1 population. It's a little silly that ships only take one population but infantry take so much.

Besides that I don't think I have any other design things I would like to see changed. If I think of more I'll add a edit.