1: Mistake 1: Ignoring Proper Foundation

2: Mistake 2: Using Wrong Material

3: Mistake 3: Poor Drainage Planning

4: Mistake 4: Neglecting Maintenance

5: Mistake 5: Uneven Wall Height

6: Mistake 6: Lack of Reinforcement

7: Mistake 7: Overlooking Design Consistency

8: Mistake 8: Not Considering Terrain

9: Mistake 9: Incorrect Wall Angles