No, sorry. I've lived in Denver since before the airport was built and flown in and out or there more times than I can count. Yes, there are some weird murals, the airport is shaped like a giant swastika, and there are many many underground level that house aliens (the extraterrestrial type), but this mural was never in the Denver International Airport.
https://www.factcheck.org/2020/06/painting-of-children-in-masks-isnt-a-1994-airport-mural/