The picture above shows you about Indonesian (javanese in precise) wedding dress on the last decade. Most of them not buy that uniform. They only rent. So one picture and another, one bride and another, from time to time just look similiar. Not imposible they are all rent exacly same uniform ^_^.
In modern wedding tradition, women need to be unique as a bride, so they buy their own gown. This is why kebaya as a wedding dress become popular and kebaya designer like Anne avanti got famous.
Even the patron of kebaya have limitation, creativity is unlimited. Kebaya as a wedding dress become industri, became an art, and another sub business in Indonesian wedding tradition.