For the best visual quality, many users prefer downloading high-resolution images from sites like Unsplash or Pexels and creating their own custom nature slideshow theme.
Although designed for newer Windows versions, some nature "themepacks" available on the Microsoft Store can still be downloaded and extracted for use on Windows 7. download nature themes for windows 7
A dedicated site for custom Windows themes where you can find specific nature-themed categories. How to Install Your New Nature Themes For the best visual quality, many users prefer
A leading community for custom creators. Searching for "Windows 7 Nature Themepack" on DeviantArt yields thousands of user-created packs featuring high-definition landscapes and wildlife. For the best visual quality
Since Microsoft's original theme site stopped adding content around 2015, you should look to these primary sources: