What field is used to get the user to take a picture and then upload that picture with the form?
Does using the button "Take Picture" and checking "Keep as Attachment" in the Picture Options automatically save the taken picture with the form, or is there another step?
You can use use "Attachment Field" widget on your form. It will allow you to configure the attachment specification. It will also allow you to take photo or upload from library while using application form on mobile devices.