How do you get more decorations for the villa in the resort area

The music box you can order once you have the rack.

The Pokemon bust you can order after you have battled each of the Battle Frontier facilities more than once.

The second Pokemon bust you can order once you get any type of the silver print.

The piano you can order after you've entered the hall of fame ten times.

The guest set you can order once you've had over 50 battles at the battleground, which is in the Survival Area.

You can order the wall clock after planting 50 berries.

You can order the masterpiece once you have hatched over 30 eggs.

The tea set you can order when you get the guest set.

You can order the chandelier when you've taken over 300,000 steps since the beginning of the game.

There is also an AR Code that unlocks all items but I don't have it right now.

Here are Bonus Villa Decorations and how to get them:

Chandelier: Walk 300,000 steps.

Tea Set: Purchase the Guest Set.

Pokemon Bust 1: Take each Frontier challenge more than once.

Pokemon Bust 2: Get any Silver Print.

Wall Clock: Plant 50 Berries.

Music Box: Purchase the Rack.

Masterpiece: Hatch 31 Eggs.

Piano: Beat the Pokemon League and enter the Hall of Fame 10 times.