No it is not, you are covered.
Is It Illegal To Send Pics Of Yourself In A Bra?
No, but I find that sending them in an envelope to be much better.
To individuals I'm not so sure but I know its illegal to publish it on sites and stuff if your under 18 =)
Okay girls it is not illegal to send pics but I would not recomend it, you can get in so much trouble
Yes, I'd say so.