The products displayed in the images are randomly chosen pieces.
The images try to reflect the real characteristics of the product but, by the fact that they are natural and / or craft products, there are usually small variations between one piece and another. These differences may be in size, format, tone, etc.
However, the product quality is not impaired by possible differences between pieces of the same reference.
Another important issue to consider when looking at the photos is that the colors often appear differently depending on the type and the resolution of the screen or the device in which it is seen.