Hi, well done for this challenge.
If you want to use the <picture>
tag you need to write a media source and the <img>
is by default.
On your website the both images don't change.
<picture>
<source media="(max-width: 799px)" srcset="your path" >
<source media="(min-width: 800px)" srcset="your path" >
<img src="your path" alt="your description" >
</picture>
Here is a link if you want more news about it Mozilla mdn.
Hope to be helpful.
Marked as helpful