Hi!
Could someone be so kind as to evaluate my work on multimedia and embedding assessment?
I already did some self-evaluation, and put notes and questions in comments.
Thank you for your help in advance! 
My work:
(All CSS styles were given as the starting point. I only wrote embedding part of HTML.)
Assessment page:
Great work again, @Risa!
The only thing that can be optimized:
In the <picture> element you could use redpanda1200w.jpg as the fallback <img> and remove the first <source>. When the page is wider than 600px the fallback image will automatically be used if there’s no matching <source>.
Cheerio,
Michael
Thank you Michael!
I see, I think I didn’t fully understood how the fallbacks work. I think I understand better now!
Thank you so much! 