Hi there,
thank you for inviting me to place a bid, I'm very much interested in your project and I would be happy to learn more about the story.
As a traditionally educated artist with many years of experience as an old-school illustrator, I can offer handcrafted, original art in variety of media, from pencil, pen and ink, and coloured pencil, to watercolours and gouache (or a mixed medium). My process begins with pencil sketches which can go through as many edits as necessary, and after they are approved, I proceed with inking or colouring. Final deliverable is either a high resolution scan or the hard copy original which can be sent upon request.
I'm aware that my quote exceeds your projected budget, but with this many illustrations I'm way below the usual minimum rate. Please note, however, that my quote is for full inside illustration package and includes a storyboard (which I assume you wont be needing as you stress that the book is planned out), characters design, 19 one page full bleed illustrations (moderately elaborate), illustrated end pages and some spot illustrations (should there is a need, say, for the inside title pages or the dedication page).
I have few not so recent samples available at https://www.freelancer.com/u/ddimitrovska.html, so if you are interested, please contact me so that I can send you many more samples from my ongoing or recently completed children's books. I would be happy to discuss details over chat so I look forward to hear from you.