Yes Bastien, the island is a simple shape circle+added fakestones, and the mask to shape the height of the foam (coming from the wave) running down that rock was attached as child to that rock, instead of as a mask (one step for me... a huge step for the rock).
And I don't know about Mac, it's just an mp4.
An earthquake with some shattered rocks coming down, etc. Might be fun to make. Possible, I'd say.