Here is the full list of all 16 Dress-up Traveller achievements.
Defeat tree demon
Defeat 500 enemies
Get all the equipment
Has 50000 coins
Defeat big spider
Has 20000 coins
Reach level 25
Defeat 150 enemies
Get honey
Reach level 20
Reach level 15
Has 5000 coins
Defeat 50 enemies
Reach level 10
Has 1000 coins
Reach level 1