Translation:Ceketim çok resmi duruyor.
Is "duruyor" commonly used for looks?
Yes, you can also use gözüküyor or görünüyor. They are all common.
they didn't accept görünüyor as a correct answer
is durmak to stop ?
It has about 15 meanings (many of which overlap with "to stop" in English) :) It can also mean "to look/appear" or "to stand."