Here is the full list of all 19 My Aunt is a Witch (HK/TW) trophies - there are 1 bronze, 9 silver, 8 gold and 1 platinum.
Good job! Completed all tasks!
Find All Skulls
Become the enemy of the bears
Defeat the Spider
Meet Elmara for the second time
Save the Bear
Visit Beatrice
Meet the Master of Fate
Collect all the coins of Baron de la Pig
Find a lucky coin
Meet the doll from Silenced: the House
Use dark magic on Elmara
Defeat the Banshee
Defeat a shadow girl in a battle of wits
Outplay Malicente
Complete the mini-game on the first try
Fail mini-game
Cook a potion with Grimmor
Become Laura's Breakfast