respectfully and politely let them know who designed the character and tell them that they should credit them
(from the previous tags)
Recently I've noticed that people have been drawing my monster dca designs (e.g. cryptid Eclipse and moth Moon) without giving me credit or mentioning me. I want to make it clear that I want to be credited when you draw my designs.
I've worked very hard on all of them (especially cryptid Eclipse who I've spent a large part of this year designing) and they're all very important to me.
Seeing the designs being used without credit is honestly very disheartening and demotivating.. so please, if you draw them (which I'm completely fine with btw!) please credit me.