Did the watercolour paintings for a children's book called 'Dragon Quest' a while ago. It first came out in the late 1990's but seems to have gone through a reprint a couple of years ago.
Worked on it with the fantastic Andy Dixon, who has a delicious sense of the absurd. Went on to work with him on a subsequent title in the series 'Star Quest'.
Apologies for the poor quality of the reproduction here (and page gutter on show). Had to scan it from the printed book as the publisher kept the originals. We've had a bit of a falling out about that.
Published by Usborne.
More info here -[link]
copyright Nick Harris and Usborne 1998