Hi there,
I was happy to see your call and I would like to express my serious interest for your book series. I'm a traditionally educated artist working as an old-school illustrator for many years on various projects, lately mostly on children''s books. As I work by hand on paper, I can offer variety of styles and media, and since you are after bright and vivid colours, I can offer either coloured pencil or watercolours/gouache (or some sort of mixed medium). I have few samples available at https://www.freelancer.com/u/ddimitrovska.html, but I have plenty of more recent works that are still not available for public display, but which I can share with you in a private message.
My quote is for one book according to the specifications you stated, and would include design of your character, a storyboard, 10 illustrations (one page or double spread), cover art and a leaflet that will feature one of the inside illustrations or the cover art. I can introduce my process to you, but as the space is limited, it might be better , if you are interested, to continue discussion over chat. I'm looking forward to learning more about your stories and to hear from you,
kind regards,
Dusica