Creation of characters for commercial use

I would like I would like two human (male and female) characters surrounded by text (see attached for the type of thing I'm after) to celebrate Vet Nurse Month (in May).

If this works out well, I will then probably request the same characters to be shown demonstrating pet/vet care products on either a cat or dog. This will include some text. These images will be made into graphics for social media and associated promotions to highlight the company and products.