Lora and Alex Watercolor

I've been working with a book called "Fast Sketching Techniques" by David Rankin that seems to be inspiring me, today anyway. So I tried the picture of Lora and Alex again & painted this while I was watching TV. Not quite there yet but I think I'm getting closer.
I love this picture. It was taken a couple of years ago at Halloween, Lora was a cat and Alex the mouse.
I'm going with the theory that it doesn't have to look exactly like the people I'm trying to paint.