I am looking for illustrations for my children's book

I have just written a short story book for children aged 5 upwards and I need drawings to go with the text. There are approximately 13 images required including front and back covers.
I have already one drawing of a character which will need to be used through the book. Your illustrations will be of children roughly between 7yrs-9yrs old.

I am looking for a unique style to convey the message, so please send me examples of your work.