Based on the description of large skyscrapers and buildings drawn in graphite, the most relevant principle of design present in this image would likely be symmetrical balance from shape usage.
Skyscrapers, by nature, often have symmetrical designs, and the use of shapes in their representation tends to create a sense of balance within the composition. If the drawing shows these buildings arranged in a way that reflects symmetry, this principle is prominent.
The other options—radial balance, emphasis from color usage, and movement from texture usage—seem less applicable based on the provided context.