Looks awesome! If I could draw like, I just might be a productive member of the DA community.
As for your challenge, is it "to wish on a star"? I came to this conclusion because I noticed there wasn't a shooting star in the picture. You wish on a birthday candle, and dandelion by blowing on it, but you typically don't wish on a stationary star (unless you want your puppet to come to life). I doubt I'm right, but that is what over-analyzing brought me to.