Here is the full list of all 41 Castaway Paradise (EU) trophies - there are 18 bronze, 21 silver, 1 gold and 1 platinum.
Got all trophies
Grow every type of flower
Grow every type of fruit
Grow every type of crop
Visit all buildings and rooms
Rebuild Angus' Trailer
Donated every collectable
Donate all shells
Rebuild the Lighthouse
Donate all fish
Read 50 chit chats
Rebuild Francis' Pirateshack
Rebuild Amelia's Planehouse
Remove 25 cobwebs
Donate 15 shells
Make a profit of 2000 gems at the Bank
Remove 50 weeds
Completed 100 quests
Harvest 50 crops
Collect 25 pieces of garbage
Remove 25 stones
Changed every piece of outfit
Wore an outfit of the opposite gender
Donate all bugs
Rebuild Victoria's Mansion
Donate 15 fish
Used every piece of equipment
Introduced yourself to all the villagers
Unlocked a gate
Donate 15 bugs
Live the luxury life of a VIP
Unlock the second room in your house
Donate a collectable
Rebuild Harold's Museum
Make a profit of 5000 gems on the Stock Market
Rebuild a bridge
Completed 25 quests
Rebuild Gustave's Bakery
Make a profit of 500 gems on the Stock Market
Get your first collectable
Completed the tutorial