I used the following prompts :
Analyze the following Mathematica codes very carefully and create an artistic rendering of how the result would look like in 3D:
ComplexPlot[ZTransform[n^2*UnitStep[n] - n^2*UnitStep[n - 10], n, z],
{z, -2 - 2 I, 2 + 2 I}, ColorFunction -> "CyclicLogAbs"]
Here is the outcome from DALE-E-3