In most cases, there is no need to create a subfolder under /images/ for each product. Just put the main product image (Randoms_320.jpg in your case) in /images/, along with the additional image files. (Note: it is bad practice to have spaces in filenames - use an _ or - instead. Some programs don't like spaces in filenames.) Name the additional images like Randoms_320_1.jpg, Randoms_320_2.jpg, or Randoms_320_325.jpg, Randoms_320_340.jpg.
Since your base image is named Randoms_320, the additional images need to start with the same thing to be recognized.
Also, if you capitalize a filename, you MUST capitalize it the same way everywhere you use it. It is easier to remember if you just use lowercase in all filenames.



