"To enter this sweepstake send 0.0005 Bitcoin to address.
12bfiUReRn9cEz3tVn3VN2s6ae6VkQMhNu"
So this is a raffle, that might be something you should add in your title, furthermore it would be great if you could disclose the chances of winning.
" Enter the sweepstakes by buying a ticket.
If you are the winner you will get a prize on your sending address."
Even if this is legit, do you seriously think anyone is going to participate in this? Put some effort and time in man. What are you expecting?
It looks sloppy and ugly, i'd be surprised if you even get one "investor" for your raffle.
There are sites out there who are way more trusted and do this on much bigger scale. I do not see any reason to invest or play in your raffle.