How to prevent people from copying my minecraft skin?

So I created, well took a skin from an app and added my touches and different colors, a minecraft skin for pe and everytime I go on a once server people copy my skin and I there's always at least four girls who do. I know that people copying me is supposed to be good but I want to be unique. Maybe it's a glitch that I see people in my skin? But I know there are ways on apps where you put the username of someone and you can wear there skin. Is there anyway that I can save my skin and no one can copy even if they search my username?

Read more: How to prevent people from copying my minecraft skin?