Per the MTA: "Reflecting the community of people who use the 1 Av-14 St station, vibrant compositions totaling about 400 sq ft of glass mosaic ... are installed throughout the station."
Here's more via @mtaartsdesign:
The intriguing, ethereal figures seen in the mosaic panels represent the riders of the L train, which transports creative folk pursuing their dreams and the real-life heroes who provide essential services.
In New York, these riders are dressed most often in black, which the artist believes is "merely a cloak over an inner life that is wildly colorful and unconventional." This group of figures expresses the energy of camaraderie when people are gathered together and inspires viewers to consider the outward expression of one’s own interior vivacity.Artist Marcel Dzama created a series for the Bedford stop. This post at 6sqft has more photos of the mosaics at the First Avenue and Bedford stations.
Art pics via @mtaartsdesign