My copyright cape (sorry for bad english)

So I created a Minecraft cape and I think it's beautiful and really good for use in Minecraft. It's a red-blue creeper face!

If you don't know what I mean by "COPYLEFT" I mean that you can use this cape only in Minecraft, so pls don't upload this cape in other forums.

here's the cape link:[font="Proxima Nova Regular", "Helvetica Neue", Helvetica, Arial, sans-serif][/font]

Oh and one other thing: I created this thread because I want to publish this cape in lunar or badlion client. How can I do that?