I wonder sometimes

I wonder sometimes why people feel like they need to tell me what I need to do to my paintings or etc. I have a few paintings that was so proud of painting that i had to share on facebook groups and i have people telling me i need to add this or that. I was always taught that painting is like a form of freedom of speech that your paintings are the way you express your feelings or etc. I also was taught that a painting doesnt have to look exactly like a character or person or object that you painting as you are expressing how you feel it looks like.  ( i know i am probably not making much sense lol )