I really like what you are doing here and after playing a few express games with this mod I have a few comments:
You are making wood such an INSANELY valuable resource that it cripples almost everyone. I understand that you are running into the issue of it not showing up as frequent and right now that really kills the early-mid game. I feel like it would just be better to remove the wood all together or fix it's abundance issue soon.
Seeing non-cartoon images for the techs is a little jarring. I realize this is just a stupid aesthetic complaint but it's something I notice a lot when I play.
I find it really hard to bring myself to EVER make Cavemen, they are so close to warriors in cost that I almost NEVER bother with them in early game. I don't know what you can do to fix this, maybe remove some of their negative effects? I don't honestly know. The plus is that the AI seems to LOVE cavemen and it makes it REALLY easy to overthrow civilizations early on by just spending a few extra turns and gold.
This is all I have for now that has been the most apparent. I've never got very far in my games with this mod because the wood problems really borks it for me.
Edit: I need to clarify that I really love this mod and want to see it improve has it really adds alot to my games. So many thanks for it!