I will only comment on the first few pictures, because I can see that it can be nice pieces. You should make it or a rock cave or a jungle cave (don't merge them). For a jungle cave (which I think fits better) you can make it like this View attachment 14009. I also wonder wether the waterfall comes from. Good luck improving the piece. I see potential.
I will try it out for sure when i got time

Thanks for commenting ^_^
And the water is coming from the picture's before the cave, you can see It's a vortex in the small cave on the isle
