Island

Viewport - The island is a procedural shape, which is why it does not show up in the standard viewport. I used many controlling objects to place the leaves more efficiently and curve the trunk.

Clay render - I used an hdri for lighting.

No post processing - I textured the island with wavy lines, and the palm tree has small polygonal shapes across the trunk.

Final - To accentuate the tropical vibe, I added many custom lens effects.