Does it mean;
It's of you. and That's of you.

Does it mean;

It's your picture.

Do you say it when you see someone's picture?

Question

Does it mean;
It's of you.  and  That's of you.

Does it mean;

It's your picture.

Do you say it when you see someone's picture?

Answer

Yes

Answer

You generally wouldn't say "It's of you", you would say "It's a picture of you". You would probably never say "That's of you" because it's just very awkward. You would say instead "That's a picture of you".