Good job on the page. I like the photo and offset text.
There’s a couple of things I would add.
<!--here you open and close a row right away which I don't see the need for but there could be one. The spacing makes it look like the container closes but I think that /div would close the row.-->
<!--I've learned here that inline styling is bad grammar. You cold make a class in your CSS and throw it in there-->
<div class="container" style="margin: 30px 0px 0px 0px">
for you image:
<!--you should include an alternate for your image, alt="carl sagan pic", in case the image fails. Also, I think leaving the protocol http and https is best for compatibility issues but I'm not certain.-->
<img class="img-fluid" src="https://upload.wikimedia.org/wikipedia/commons/b/be/Carl_Sagan_Planetary_Society.JPG">
I can’t see any other improvements to your code outside of some style, but that would just be preference.
I think you did a great job with your grid system and it looks good man.
I wish my fkn Portfolio would go as well as this lol.
gd job man.