Paste screenshots of your model geometry here showing your parametric building forms flexed with different input values:

The first two images are from the Part 1 Model. The second two images are from the Part 2 Model

In the first model, I decided to use the twisting triangular tower mass template. Instead of parameterizing the twist, I decided to set the tower with a max twist angle from the bottom to the top of 20 degrees. The parameters for this model were the mid height triangle radius and the top height triangle radius. The top triangle was constrained to never be larger than the mid height triangle. The mid height triangle was constrained to never be larger than the base height triangle.

In the second model, I used a curved hexagonal profile for the base and top sections. This profile was only partially parameterized, at what I call the tail, in order to create a unique geometry. The middle profile was also a hexagon but with concave curves unlike the top and bottom. This created a three flowing face along the height of the tower. The parameters in this model were the top section tail depth and width which greatly affect the appearance of the tower.