I did not attend any art school , learned painting from my own experience and by visiting each and every museum and exhibition , possible.
Sure there are some mistakes in my works , or at least something that I do not like. But I am not sure that it is bad.
Today we have 3D printers , powerful computers , sophisticated programs. Machine is already playing chess better , that any man. Artificial intellect program can learn any painting technics or style of any great artist , then it can be printed with exact quality.
But there is something that machine will always loose to human- computer is excellent machine , it can make billions computations in one second ... but it can not make mistake , it can not break chain of logic... but we human can.