At the right moment of sale, the salesperson with a mobile phone, tablet or computer will show the pictures and videos of the items being purchased (and the System gernerates the production order). Think you can make a video to show where your buyer can see the models on the catwalk performance of the play in motion.
Another place where the feature image and video of the finished products will be useful is during production. For example, when cutting fabric, the professional can verify the end result of the garment look like by color variant and which will give additional clues about the correct fabric to be cut off.
The same can be interpreted at the time of manufacture where through images and videos seamstresses can see constructions details and colors placement, which will add up the information from the Technical Specification.