If you like something, there's a good chance your child will hate it. Children at this age are in the process of sorting out all the information and values they are exposed to. Don't be alarmed if you seem to have more disagreements. Be patient and allow them to work this out. There is no magic way for parents to help their child reach adulthood.
Parents can have a steadfast commitment to listen, negotiate and pass on experiences.
It's up to the child to decide whether or not to listen. The choices are his responsibility. How preteens look is very important to them. If they feel they aren't attractive, they can become very self-critical and find all kinds of things wrong with themselves. It's important that parents have their child look at her positive features.