Art is very, very, very, VERY, VERY, VERY, VERY subjective.
Some people think that Italian paintings are masterpieces.
Others are horrified because Christ is being murdered in most of them.
Much of it has to do with culture, context and values.
Once when I was a small dyslexic kid visiting my older brother on a university campus I saw a modernistic building and read the plaque on the front: Gallery of Fine Rats.
Naturally I asked, "What makes the Rats here any different from the rats back home?"
It took me years to figure out why the adults were laughing their ass off.