I'm not sure if these are pure animalizations of Mona and Lisa, or if these are existing ponies who are cosplaying them, so I'll leave character request for someone who knows more about My Little Pony.

ygmdd said:

I'm not sure if these are pure animalizations of Mona and Lisa, or if these are existing ponies who are cosplaying them, so I'll leave character request for someone who knows more about My Little Pony.

No, these are actually Mona and Lisa, just turned into MLP characters, down to their designs. They're not random ponies cosplaying as them.