Looking at past winners of the Macmillan prize this morning.
Emily Gravett's site is here. She won in 2004 and uses a traditional painting and ink style combined with the computer for compositing images. There are some nice vids and things to check and you can see her working method, which is not too dissimilar to my own.
In an interview for Macmillan here, she talks about about what winning Macmillan meant to her and how she came to children's book creation. There is lots for students, -especially the older, new parent variety, such as myself- to relate to. Great stuff!