I just found yet another amazing illustrator, Sarah Beetson...
One word: colours!
Her trademark, I think would be, the background that start out with splatters, followed by her sketches of a woman. I like it when she didn't add colour to the object, exposing the background as the skin.
I also like the way she combine her sketches with words.
It remind myself of my old hobby back in Junior High... creating all sorts of fonts and coloring them in with my trusted Snowman markers, like this badge here.