**Design Breakdown:**

1. **Archway Structure:**
   - Retain the overall arch shape but change the color to a soft blue, giving it a calming appearance.

2. **Decorative Elements:**
   - Replace the ornate motifs on the top with simplified geometric shapes, perhaps using triangular patterns.

3. **Signage:**
   - Change the central sign to a smooth rectangular shape with a light beige background and dark blue lettering, featuring a new fictional name.

4. **Side Columns:**
   - Update the vertical wooden panels to a lighter shade of yellow, with engravings of abstract symbols instead of the previous text.

5. **Water Feature:**
   - Alter the shape of the basin to be more oval and introduce a few colorful pebbles visible above the water surface, while keeping the water lilies.

6. **Background:**
   - Modify the background building to have brighter colors, perhaps a sunny yellow, and replace the corrugated roof with a tiled one in a warm earthy tone.

7. **Plant Life:**
   - Add a small flowering bush on one side of the archway, introducing splashes of pink blossoms to enhance the vibrancy.

This revised design creates a more inviting and colorful entrance while maintaining a harmonious balance.