Need Black & white line art sketches for kids (age 6-12) - for a book

My project is long term. Need work on several books.

Posting this job for 1 book for now. Looking for reasonably priced line art sketches illustrator. Target audience are kids aged 6-12. The book is like a biography - life of the kid from child to old age . The story is written already. Based on the story ( I will provide ideas - outlines for what pics to draw) Need to sketch the pics. I do not need intricate pictures / just simple clean black & white sketches .
- There will be 1 main character/person .. rest will be objects
e.g https://goo.gl/images/2vU06Q
https://goo.gl/images/eQoGhw
https://goo.gl/images/wyfUQ0
- You need to take care to match the ethnic background /age of the kid in the picture based on the story. For e.g An indian girl born in 1970s should look like that.
- I need a total of around 12-15 illustrations for the book.
- Need the illustrations done in 1 week.
- Has to be completely original .
- Will give credit to the illustrator in my books.

Please send me sample of your original work when applying. Looking for a good illustrator with reasonable price.