First webpage using HTML and CSS

What are you most proud of, and what would you do differently next time?

I'm proud that it looks like a decent webpage. I hope to learn how to create a responsive website soon, because right now it looks better on desktop than mobile.

What challenges did you encounter, and how did you overcome them?

At first, none of the CSS styles I was creating was working. Turns out I forgot to link the style.css file to the index.html file.

What specific areas of your project would you like help with?

I don't know how to change the layout to remove the colored background and enlarge the photo on mobile view. I'm also not sure whether I should be using 'class' or 'id' on the HTML elements.