Illustrations for a Poetry book

Hi, I am looking for someone who is creative and original. I have written a poetry book which I will be publishing about mental health and I need someone to create the illustrations internally. There will be around 100 poems and I aim to have at least 60 illustrations. Some of them will be simpler than others for example a Crown and a Bicycle. I am looking for someone who has a certain style. Some of the illustrations will be in colour. I would give you an idea of what I envisage and for you to then design it and adapt it with your unique touch. Some of the illustrations will require a character which would be gender neutral and so I would welcome ideas as to how this would be portrayed. I would like to know how much you would charge (fixed price) and what type of window you would need in terms of creating the illustrations for the project?