Is this the second time OP is doing a giveaway? Looks like the previous one is quite a success if he's doing it again. I guess it's quite cheap since they only need one winner. It's not for me since you need so many social media accounts, though.

Btw, how will you handle cheating accusations and so on? If there's no transparency about it, isn't it very easy to abuse that? Hopefully, this won't be another question that gets ignored.