Killian believes that the beauty of architecture lies in its proportions, and that the most captivating designs strike a balance between repetition and variety. He compares architecture to music, emphasizing the importance of mastering both the theoretical foundations and the rules of the craft, as well as embracing the intangible aspects of artistry that elevate creativity to exceptional levels.
Outside of his professional life, Killian values family time and indulges in his love for art and music whenever possible. He maintains a sketchbook filled with watercolor paintings and enjoys playing the guitar and banjo, reflecting his artistic inclinations beyond the world of architecture.