I need a children's book illustrated

I am in the process of writing a short children's book and am looking for someone to illustrate it for me. I will need approximately 12 illustrations (may a couple more).

Please have a look at the pictures below to give you an idea of the style of characters I would like. As you can see the characters are fairly simple.

I will send more information to shortlisted illustrators.

Please provide approx. costs either per illustration or for the entire project (no day rates). I understand these costs may change when you have the full requirements.

Thanks :)