When you criticize me as you say you are, I’m not just going to take it
im not going to roll over and let you tickle my belly
perhaps that’s the difference between me and you .
It's called critique, something I learned in spades for my Art Degree.
You don't want to be treated like a proper artist? Do you just want supply? You wouldn't even make it through the first year with this attitude.
The polite way to handle criticism you don’t agree with is probably to say “Thank you”