Since the new signboard is soon to be up, I couldn't help but to feel the happiness with this matter. I know how much effort you had exerted into making this possible, and you simply dessrve to get the purpose of putting up a sign there. This is a good move especially if you are introducing something or making an annoucement. Though television is the primary medium for promotion, we cannot deny the fact that putting up a billboard on a public place is also a huge help in spreading information!
Write something about yourself. No need to be fancy, just an overview.