Unique illustrations for a medical training website to match our wordpress theme

We are a medical training company (new) and have purchased a hand drawn wordpress theme. Originally, hand drawn images were required to match this theme, however, perhaps digital imaging or any other innovative images to compliment the site which are colourful, fit in with a medical training ideology and most important they don't look like stock photos which most medical sites use!! We require 4 core images covering the 4 main core training courses of First Aid at Work, Emergency First Aid, Paediatric Training and Automated External Defibrillator Training, then further images which can be run throughout the site adding, possibly medically orientated, but most important they have inventive design elements and colourful.
Have you got the ideas?
I need to see some of your work prior to making a decision plus your prices ofcourse. This could lead to a lot more work to the right person!
Time Frame is important, not much time, so this will play a part in the decision making.