Based on the answers provided, the following corrections need to be made to the 3D object:

1. Make the second trapezoid larger than the first one. Currently, the second trapezoid is not larger than the first one, which needs to be corrected.

2. Ensure that both trapezoids are right trapezoids. It is currently unclear whether the non-parallel sides are perpendicular to the bases of the trapezoids. Adjust the angles of the trapezoids to ensure they meet the criteria of right trapezoids.