Need some vector artwork (people) business specific

I need a series of vector artwork. These will be people in specific professions like a pizza guy and a dentist. I will need at least one of each with the person being happy and a similar with the person being not so happy. This is an on going assignment and I will probably need 60-100 of these in the next 6 weeks but lets start with 4. I need...2 pizza restaurant guys...and two pizza restaurant girls. One guy should be happy. The other not so happy and the same with the girl. I need to see some samples of similar work. The images should be full color and should adapt to screen size (website and mobile for example) This needs to be 100% original work and the final product will be exclusively owned by me. Right now I'm looking for samples and a quote for the 4 listed above.