>went to some Asian's islands
1. Asian
2. dlaczego liczba mnoga? chodzi o archipelag? ja by napisał: went to an Asian island
>preparing for these exhibitions
1. these -> this
2. exhibitions (wystawy) -> expedition (jedna wyprawa)
>was giong past the jungle
through the jungle sounds better
>saw a shadow on his back
może saw a shadow behind him (on his back brzmi mi tak jakby na plecach zobaczył cień)
>in grand -> in ground
>which said him ->which said to him/which told him
>and enter to the cave ->and entrance to the cave
>angry for himself ->angry with himself
>understands his wrong ->understood his wrong actions
>waited to death ->waited for death