I'm kind of wondering at this point if you have any idea what the fanon for Luna is actually like.
Hint: The vast majority of it is extremely cartoonish in nature. Mostly being slow to adapt to the changed Equestrian culture and technology, being a bookworm like Twilight (but with lots of math), and being a prankster. Stuff where she's evil, depressing, or resentful towards Celestia is pretty rare.
Edit: Also, in terms of images that aren't just poses or purely for artistic appeal, probably half the stuff with Luna is filly Luna doing adorable things completely unrelated to canon in any way and still unaffected by this episode.
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"That is why war is so tragic. To win means to make victims of your opponents and give birth to hatred." - Kratos Aurion, Tales of Symphonia