Believe it or not, it's actually more a fan art of the HM01 "Cut", than it is a fan art of Natane/Gardenia.
Seeing as you need to beat her- obtain the 2nd gym badge, in order to use "cut" outside of battle, she was pretty much chosen here...
But eh? The character has its charm, right? -Yet another unique-designed Pokemon trainer/gym leader character to capture our sight, hearts and make us go "aww she seems fun, and what a neat design! ^^" But the next thing I know, she's seen kindly asking plant Pokémon to inflict pain upon her body, with their attacks, to her LIKING, as she squirms and squeels with glee and delight.. Honestly, I wasn't sure what I was looking at there. 8(
So she likes plant pokemons I guess... A "wtf moment" that you laughed at, not because it was funny, but because you just didn't know what else to do. 8D;
Anyhow, the idea for this picture is rather old infact. But decided to finish it up for the heck of it. XD