A birthday decoration setup with a themed backdrop showing "Happy Birthday" and the child's name in bold uppercase letters, including the age. The balloon arch is arranged neatly from top to bottom on the left side in the theme's color. The cake is placed on a pedestal in front of the backdrop with a matching design. Cupcakes are arranged on a side table. The goodies bags are placed on top of a separate table. Everything follows a fixed minimalist layout with clean spacing, theme consistency, and soft indoor lighting.