If you're trolling, you're doing a pretty crappy job of it. The originals clearly took a lot more time than a standard gif, especially considering the typography and the size, and how anyone who makes gifs knows that even the simplest can take more time than the ones that look more complex because of Tumblr's size restrictions.
But that's irrelevant, because no matter how much or how little time was spent on the gifs, it doesn't change the fact that Liz made them from the source material. It's her vision, her work, and someone else took that interpretation and presented it as their own. It'd be like someone claiming the series Sherlock as their own because "they're just plagiarizing!". Um. Nope. And the fact that I went to your blog and found fanfiction there is probably the most ridiculously amusing part of your argument, since I'm sure you'd be very frustrated if someone reposted those creations from the source material- although judging from your attitude toward all this, I'm very doubtful that any of them are originally yours at all.
And whether or not you're trolling, you're still disgusting for that last post. But I'm pretty sure that that's self-evident.