Here is the full list of all 12 Mahjong Carnival trophies - there are 7 bronze, 4 silver and 1 gold.
Complete the Venetian Carnival
Complete the Indian Carnival
Complete the Egyptian Carnival
Complete the African Carnival
Complete the Chinese Carnival
Complete 30 levels with the highest score
Use bonus 50 times
Earn 100 000 points
Complete the Brazilian Carnival
Remove 1000 pairs of tiles
Earn 30 stars
Achieve x5 index