Here are my boots. These were made a little different. At first they were huge because I used the Cube at it’s default size to build my boots from. I scaled them down when finished and applied the scale.
I liked how you made the boots. I didn’t think of the approach quite the same way but see how there are many ways to reach the same goal. I also removed inner faces for a lower poly by getting rid of unnecessary geometry.
The top section of your boots seems, to me, to give them the feel of snow boots. Eskimo style. I am surprised at how easy it is to achieve that with so few polygons.