I think it’s a fresco as that is what was used back during the renaissance
Calligraphy is an art form that combines writing with art. In islamic culture it is used everywhere, from kitchenware such as plates and vases to holy places in writings and wall art.
Despite the massive size of the sculpture, its design is such that viewers can walk underneath and around it, thus enabling one to perceive it in human scale. The shape of Flamingo alludes to the natural and animal realm, which is a stark contrast to more literal interpretations in sculpture from previous decades.
Hope this helps
One is able to say what they want to say or express how they feel about a certain topic.