I’ve been asked to critique many people’s work over the years. This is one of the hardest things to for me to do. I don’t ever want to hurt people’s feelings, but at the same time, I’d like to be helpful.
Here are a couple of resources that can help you know what to do when it’s time to critique someone else’s work. (Or your own…)
As you can see, there are many common ideas in those three articles
Getting Feedback (criticism)
And not just on writing. Learning to accept and weigh criticism from others is a skill that will save you a lot of grief, and generally improve your life.