Is that a Jojo's reference?! Sticker for Sale by Bipin Baby

List of cultural references in JoJo's Bizarre Adventure, JoJo's Bizarre Wiki

5 JoJo's Bizarre Adventure References in Video Games You May Have Missed

So Isla is totally another Jojo reference right?

JoJo Reference by FrostBlaze1 on DeviantArt

Who is JoJo, and why is everything a reference to him? - Quora

Outright Plagiarizing JoJo Having no JoJo reference (most anime) Having a JoJo reference at least one

IS THAT JOJO REFERENCE??? by Sukanachuj on Newgrounds

Jojo reference in anime

Is that a JoJo reference? by Yosha -- Fur Affinity [dot] net

JoJo Reference Response, Is This a JoJo Reference?