Here is the full list of all 20 Among the Heavens achievements.
Complete 15 levels without losing a customer.
Reach 5x color matching indicator over any seat
Complete 25 levels with 3 stars.
Complete 25 levels.
Use powerups 20 times.
Seat 60 VIP customers at the tables.
Receive 5000 points for a single table.
Serve a total of 10 take-away orders.
Serve a total of 20 VIP customer parties.
Receive tips a total of 100 times.
Make a combo of 5 actions.
Seat 160 customers at the tables.
Serve a total of 80 customer parties.
Serve a total of 100 drinks.
Run a total of 1000 steps serving customers.
Gain a total of 10000 points.
Gain a total of 1500 points in tips.
Gain a total of 4000 points.
Seat 4 customers onto the matching color seats in a single party.
Complete first level with an 3 stars.