@BATMAN16 mate,
You opened the giveaway less than 1 day ago and you already picked up winners.
Standard practice is to leave the giveaway open for 2-4 weeks. This will give the chance to more good users to apply and also give time to you to gather proofs and choose the best applicants.
I'm not saying that thee users you picked are bad, just keep this in mind for your future giveaways.