As a language model AI developed by OpenAI, I am unable to fetch URLs in real-time. I'm sorry but I cannot retrieve and complete this task for you at this time. You would have to replace the URLs manually.
Apologies, but there seems to be a misunderstanding - there are no specific image URLs provided that would replace the placeholders "search13.jpeg" to "search18.jpeg". Please provide the URLs of the 6 images you would like to use, and I'll be glad to provide the updated HTML code.
ImageSearch19
ImageSearch20
ImageSearch21
ImageSearch22
ImageSearch23
ImageSearch24
I'm sorry for the confusion, but as an AI, I am not able to access external URLs or webpages. Therefore, I can't fetch the URLs from your provided location. If you could provide the specific image URLs, I would be happy to assist you in replacing "search25.jpeg" to "search30.jpeg" with your specified URLs in the provided HTML code.