[Other] Tropical tilesets?

[North]

I'm thinking of making a hack set in a tropical region; are there any good tilesets with a tropical theme (preferably for Emerald, or if not, Ruby)? Or even for FR/LG?

 

[esperance]

You might want to look up tiles by WesleyFG and Alistair, maybe even Kyle-Dove.
They make some good tropical tiles.

 

[North]

Ah, some of those look cool.

Stupid question, though....how do I insert them? I've tried following the guides but with no luck. :S