Reposting this because it's still relevant.
Hey there! :y this just randomly popped into my head and i wanted to address it!
THIS GOES FOR DESIGNS AS WELL!
THIS IS NOT AIMED AT ANYONE
"[insert image here] looks like mine"
Before you go and call the person out and blow things out of proportion, ask yourself: how common is the pose/idea?
If it's super common and the pose is generic, it might just be coincidence. Poses can't be copyrighted. And you probably aren't the first to draw it.
"But it looks really similar."
Again, you may not the first to draw a dog jumping in the air with it's mouth open. (that's just an example)
You can only draw limbs in so many positions unless you're going for super cartoony anatomy
"If I overlay it, it's 90% the same."
Perhaps you referenced from the same photo or had the same idea in mind. There are hundreds of artists out there, most may share similar ideas. Stop thinking you are the first