Dear CH this is beneficial to you to know who copied from where. Don't upset, its happens sometimes when you keep open the contest. Everyone can see everyone's entry. To avoid this you can sealed the contest. But I think open contest is more beneficial to you. Be careful to choose the winner, first confirm logo is original creation or copied.
Oh nooooooooo. Don't say like that man. I just develop my previous design #507. There was no inspiration from a pokemon ball. If you have left the contest, please keep your hands away from it. Because comments like this make serious damages to the designers who didn't do any cheating.