Ponies raped my work.

[Robby]

try spending hours on doing an artwork just to see someone adding a pony to it and have nearly as much favs as your original work and then tell me what you feel.

Well, that makes things feel more "different".

But at least he should give you credit for using your artwork.

my only relief is that he did credit me.

You also agreed to let him use that artwork. That means that he can use it in ANY way he wants it to.

The best he can do is to credit you.