Ancient greek and roman arts were very impactful during the early renaissance. The ancient romans had made murals of broken glass and they called them Mosaics, they also had ivory works, metal workings ( jewelry,swords,etc.). Greeks were famous for textiles and their paintings.
Well art is a way to express your self so if people are critiques about it then they may not understand it. So if I were in there shoes I'd feel kinda wouldn't care because it's my artwork about my emotions :) hope I helped ya