I am writting a email, is this expression ok?
Thank you for your participation.
You are beautiful!!!

Question

I am writting a email, is this expression ok?
Thank you for your participation.
You are beautiful!!!<3
It will be 200 painting totally, choose randomly from the ones who participate.
We will send a email to you as soon as you are chosen.

Answer

I'm guessing at the meaning, but here is what I think you are trying to say.

Thank you for your participation.
You are beautiful!!!<3
200 painters (or paintings, not sure what you are trying to say here) will be chosen randomly from the ones who participate.
We will promptly send an email to those who are chosen.

Answer

Which expression? Or are you asking about the whole thing?