you've done an incredible job with the measurments the only things you've missed is to add weight to the name and to take off the text decoration in every anchor.
you can add these using text-decoration: none; and font-weight: 700;
What are you most proud of, and what would you do differently next time?
I'm proud of getting most of it done , mainly the structure at once. As usual I would like to be more practical in css but I guess it's a matter of time and practice to get there.
What challenges did you encounter, and how did you overcome them?
Working with flexbox should make things easier but I'm still finding it difficult figuring out the appropriate sizes and how not to make it so it breaks in different views. The way I overcame them was changing values until I was satisfied with how it looked.
What specific areas of your project would you like help with?
update: after checking the submition in the comparison part, the screenshot is not the same thing I see on my browser window. I don't know if the comparison applies a sort of zoom or some type of width that "breaks" the final preview. It's frustrating because I've been making changes and it doesn't look like it does on my browser. The one that is shown here is not the one I did which is much closer to the "solution". If you check the "live site" it looks closer to the solution.
your work looks great but could use some changes, first the svg img in the design has rounded corners which is not the case in your work. the container is larger in width and shorter in height and the font-size is a bit smaller than it should be and finally you should work more on margin and padding.
Hope I helped you, keep the good work.