Separate image upload for multiple models

[lkotan]

I have multiple models. I want to upload separate images for each model. After the user selects any model, the image upload window opens and selects the images. It then selects another model and again the image upload window opens and selects different images. When the user wants to see the pictures of the model he has chosen for the first time, although the name of the pictures is displayed, the image is not displayed. What can I do for it?
You can view the screenshots below.