Create Images with Transparent Backgrounds for use in Photo App

Create images of articles with transparent backgrounds for use in mobile app that adds items to photographs. We will provide examples from our current apps and a list of articles we want. Images will be made by the photographer or designer or will be taken from royalty free sources such as us government websites. There is a lot of work to do over time and we want to form a long term relationship with one or two graphics designers. Our process is that we'll do 5 images first to be certain that we work well together. Then we will do more. We need a lot of these and we want them pretty fast so applicants need to be able to devote 10 hours per week. Please start your reply with - Hi CAT - so that i know you are a real person and not an autoreply. Thank you.