Giehl's work reveals different facets of his personality. His Seascapes evoke a desire for tranquility and beauty, while his Block paintings showcase a love for structure and organization, a nod to his previous career in investment banking. Drawing inspiration from artists like Gerhard Richter, Giehl is committed to exploring new ideas and compositions. His art not only reflects his personal journey but also invites viewers into a world where balance and serenity prevail.

Giehl's journey began far from the typical artist's studio. He studied computer science and business at college and spent most of his career on Wall Street in Investment Banking. It wasn't until he reached the age of 50 that he decided to pursue his long-held passion for art. Leaving New York City, Giehl and his husband moved to East Hampton, where he immersed himself in the local art scene. There, he learned techniques, color theory, and the fundamentals of oil painting from seasoned Hampton-based artists. Inspired by the natural beauty and unique light of the Hamptons, Giehl began painting daily, channeling his meticulous nature and creative spirit into his work. Giehl’s artistic portfolio can be divided into two main series: Seascapes and Block paintings. Despite their apparent differences, both series strive to evoke a sense of tranquility and order. His Seascapes, often beginning with a flesh-colored acrylic undercoat, showcase layers of oil paint applied with brayers, creating abstract compositions of clouds and sea that reflect the serene beauty of the Hamptons. On the other hand, Giehl’s Block series is marked by its structured approach, where each piece is treated like a mathematical equation, with predetermined block sizes, palettes, and compositions all variables in that equation. This process-driven methodology involves painting the sides of each block first, followed by the front, and applying various techniques such as brushing, brayering, and stamping to build up layers of paint.