Professional fine jewelry photo stacking and retouch

Hello, I am looking for a professional person with special focus and expertise in fine jewelry with gemstones photo stacking and retouching both on the single pieces and on the body. These photos will be used for our webshop as well as digital campaigns and print material. As I am starting the business, I have many works to do and I take the photos myself, but for the final edit, I need help. Our material is mostly 18k gold and precious and semi-precious gemstones. There are three types/categories of photos in general: 1) Single jewelry photos in 2 or 3 angles on the brand color background and artificial shadow under the pieces. 2) Style photos that consist of jewelries on the human model/body details. 3) Story photos that consist of the main jewelry subject on different surfaces in combination with other jewelries or other objects like flowers, jewelry box, etc. I attach samples from other brands so that you can see the kind of photos and quality I am looking for. A very important consideration is that I do not want a finished work with extreme retouches that create a totally artificial look and almost different object compared to the reality. So being natural and being loyal to colors, textures and reality is extremely important. For now, we have 15 products ready for photography. Each product will consist of 3/4 pictures; two single product photos on neutral background. The other two will be on the model and/or on the surface. This makes it 60 photos to edit in total. We are planning to make another 15 products at the moment by the end of summer, so in late August/early September, we will have another 60 photos are more to edit. I am a UX designer and visual artist myself and will conduct the art direction. I am also looking for a long-term relationship so being open to communicate, being understanding, and of course a fair price are important factors, keeping in mind that I am starting the business and we can grow together. Other requirements: We need exclusive right to the final art/photos as we are a brand. using the final art/photos in your portfolio is allowed on the condition of stating our brand name and copyright details. Other details are that the photos are not taken yet. I am planning to take the photos during this weekend and next week. Then I can send them over to the freelancer. All photos will be in RAW format. And I expect to get the original artworks in both PSD version and JPEG version. I will send the required size after talking with my web developer. Further details will be provided to the chosen person.