Okaay.x] So, this is my entry for Challenge "Elements in Anime and Manga"
First, I want to thank Killua for inviting me. ^^ You're such a nice girl ^^
Now... About wallpaper. I think, that love is also an element. Well, in some ways.
So yeah, I had this picture of Lenalee and made a vector from it. Then used all kinds of brushes and so on... The result is right above you. Hope that love is also an element for you, Killua.:3 Cuz power of Love is really strong!

And now, why did I choose Lenalee and Love? The answer is simple. She loves her 'family' and her friends. She wants to protect them, so that's why she has so much power in her. That power is called "The power of Love" or so I thought... Well, I guess, I made a good one. :D