Photo processing for the site

You need to process photos for the online store. I mean. you need to do the following - choose the best from several, framing, lead to one color scheme - by brightness, by color, so as not to walk in shades, remove the background from photos, put a different background for different categories of the site, impose a watermark. At the moment, approximately 150 photos are required to be processed. The site is going to be big, so there will be more work to do. From you - the price, terms, examples of work.