Hi Toxotis,
First up just some posting tips. When you write/paste the image code, separate each code by a space, each code underneath each other as opposed to next to each other. This way we can avoid having the huge, stretched out page!
Now, let me congratulate you on the diorama, you are making some very nice progress. Although I am not a fan of P.E vegetation, you have made quite a convincing tropical scene.
You need to work on the large palm trees, there are not enough fronds! Try adding some more high angle fronds. Coconuts tend to be small (fits in your hand) and green throughout most of their growth. It is only at the end stages that they turn yellow, then brown and shortly after, fall off.



Figures and tank looks good, I also like the destroyed hut. I would consider changing the walking Japanese's sword, it looks a bit thick.
I'm very interested to see how this diorama progresses!
Chas