Haha yes I am the boot guy. I never did get it the way I wanted in the end either. /live it down. Here is my leg superimposed over the example leg. Besides that the knee is about one leg in front of his knee, I don't see why my leg doesn't have a functioning form? And the knee part was deliberate anyways, the robot itself…
Right now the larger shapes of your design are letting you down. No matter what medium and small shapes you add, it will feel off and hard to read. Use the ideas of the functionality of the pieces to set up the skeleton of the design. Consider using the locations of joints as visual focal points. Think about scale, and…