Step-by-Step Guide

1. Place the entry porch at the left exterior, aligning it perfectly with the wooden floor platform.
2. Install the curved roof segment and attach a flagpole above the right interior windows.
3. Add yellow curtains to the large curved windows to enhance the room's brightness.
4. Install a built-in arched shelf and decorative pediment for architectural detailing.
5. Lay down a circular rug and arrange the seating to create a cozy atmosphere.
6. Position the coffee table with a potted plant at the center of the seating arrangement.
7. Place side tables and lamps beside the sofa to amplify ambient lighting.
8. Set up the desk, chair, and desktop accessories to create a functional workspace.
9. Add potted plants behind the desk for aesthetic enhancement.
10. Position miniature flag stands around the seating for a touch of formality.
11. Place character figurines on the rug to add life to the décor.
12. Border the platform with flowering hedges for a colorful finish.