Please imagine you're talking to someone through a community application on your phone like Skype. You want to see his / her face in various pics. I was wondering which option below sounds correct to you to be asked from that person:
1- Send me a (photo / picture) of you please.
2- Send me a (photo / picture) of yours please.
3- Send me a (photo / picture) of yourself please.
To me, they all sound correct, and semantically and grammatically I see nothing wrong with each one.