Request for my sister

My sister asked me to do a drawing of her character from her DW role play on facebook  
She is inspired by the character Alex Drake from "ashes to ashes"

For the background I used some photos that I manipulated trying to make them look like more cartoonish, and considering it's the first time I use this technique for making backgrounds, I'm pretty happy with the result  

You can find a step by step of this drawing here: here