Her features, like eye color, hair color, and that crazy smile remind me of a more detailed Haruko from FLCL.
It helps that she's wearing the bunny costume.
If you're going to do a fanart, try not to copy a picture directly.
I was going to scout you, but I knew that looked far too familiar. Either you copied it, just changed the coloring, or, really just didn't try.
newgrounds.com — Your #1 online entertainment & artist community! All your base are belong to us.