Herd has designed similar portraits around the world. He created earth-derived representations of President Joe Biden and Vice President Kamala Harris on a farm near Lawrence, Kansas, last year, while both were still on the campaign trail.

The temporary installations only last as long as nature allows, eventually fading away.

Lewis died in July at the age of 80 after battling pancreatic cancer. He served in the House for 33 years representing Georgia’s 5th Congressional District, which includes most of Atlanta.

The key civil rights player joined the movement as a young man in the 1960s. He helped found the Student Nonviolent Coordinating Committee and was among the original Freedom Riders who challenged segregated bus terminals in the South. Lewis was also the youngest person to speak at the March on Washington in 1963.

Most associated with the pursuit to secure and protect voting rights, Lewis led protesters in the 1965 Bloody Sunday march across the Edmund Pettus Bridge in Selma, Alabama, where he had his skull fractured by police, and was a driving force behind voting rights laws in the U.S. for decades.