There are a lot of issues for a pious Muslimah on this: - consider in your life you didn't veil your face and later you regard this as mandatory. How do you control your photos you've posted online without the veil? - how do you control that only mahrems see your photos? Privacy settings are not 100% foolproof. - you used to wear Western dress and now you've see the light and dress properly.... - and there might be other scenarios. And an extreme example: - a non Muslimah reverts but has the web filled with her previous job in the "modelling" industry. There's nothing really one can do to delete every single picture. Perhaps - keeping a photo album and displaying it to people when visiting your house is better a million times than posting a single picture on the technology we now have called the "Internet". Please think deeply about what I've written above my dear sisters in Islam.