Hello! I am not really sure what the proect is about or how do you want the illustrations to be, but in general I charge 20$ per illustration, so in total it would be 500$ paid to me (Freelancer.com will charge a commision of 55$, so thats why the bid is 555$)
I studied Fine Arts and I am currently doing an illustration master. I can guaranty proffesional and great quality drawings, not some cheap and fast done or copied illustrations. With this price its included 2 revisions per drawing, one in the sketch phase and one in the more finished phase. Aslo I would provide the files in PSD and PNG (lossless format)
If you have any doubts, you can speak to me throught the chat.
Regards!