Well, since you asked I guess I can try my hand at this critique thingie. Nitpicky I would have added more hair definition, even within the different colours of the rainbow hair. Just so we could see actual strands. It would probably give it more depth to the image. I dunno if that's just your style vs mine though, lol! I like the way the lollipop is bringing colour so the clouds and the other lollipops are still black, it looks cute.
But really, that's just nitpicky cos it's real pretty. You did a real good job. I like the brightness of it a lot.
Nice contrast! That's the first thing I see, a battle, a fight, a flow between black and white and colors of the world. Looking the drawing reminds me of the difference between the shades and colors. Good and evil in a sense, but in this case, it's more like two good, but in different points of view. As one girl has her magical colorful lollipop, it flows color to the shade's lollipops that stand like reminders for the difference between two sides of goodness in the world. Gum drop clouds and shades on color and color on shades is what gives this picture an appearance of amazement.