Thank you for your response. I sent the photo in a photographic way. The category is very important. For example, I have pictures of the city of Warsaw in the category: Buildings and architecture> Monuments and now I can only add to: Buildings and architecture The customer, after clicking the photo below him, has: MORE FROM THIS SERIES If the pictures are in different categories from the same series, they do not appear as thumbnails. I apologize for language mistakes. I do not know English.
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