Hello! Cutie, I am Comic black rainbow!
Some cuties would ask "I want to improve in drawing, so I ask others on the Internet, but how do I know if their criticisms and suggestions are correct? Or if the methods they suggested are effective for me?"
I can answer you first here. The advice is effective to you or not is up to the results that you try. When you are more professional in something, the more you can analyze what advice is right for you.