My own $0.02 worth. The first two images are reasonably "toony." The second and third (to my eye) are much too photo-realistic to be considered "toony." The character in the fourth isn't bad, but the background hasn't been "toon-ified."
On the first two images, I'd probably ditch the shadows across her face - they make her look like she's wearing warpaint. (That's one of the problems of making something "toony" - you have to get rid of a lot of things that show up in real life.)
Best of luck!