I can't describe human face in a very detailed description. I realize it's a weakness because to make a good character you might have to have a detailed physical description or even traits so that readers can clearly imagine them on their head. That's why I am having a hard time when people ask me "What does she looks like?" I just answer "well, she is beautiful, her eyes are blue and round, she has a small sexy lips" That's it. If those were to be a character only description it would be obviously lacking and common. Advises, please.