Reverse Google image search is the greatest tool to use against internet-liars, whether they be catfish or just your standard phoney. That's what it can take to catch a liar. A wide array of tools and gadgets, like Batman but far more petty. Up there in crimes with pretending you're someone you're not, is pretending you've created art that you have not created. Luckily, that one's just as easy to catch.
Rebeca must have been having a busy day because it prompted her to post this Alice in Wonderland quote with accompanying image. She adds the mic-dropping line of, "I drew this," which is her biggest crime in all of this. At best, this is a great tracing job, but a commenter puts the last nail in her coffin by posting the EXACT same image from someone's art blog. Come on, Rebecca. You wouldn't steal a car. Why would you steal an image of a bunny rabbit?