Product landing page review (using bootstrap)

I just completed my product landing page.

I do realize that I didn’t use flexbox or css grid to the fullest but I was already working
on this project before the website revamp so I used bootstrap instead(something I already knew).
I did just finish the flexbox and css grid classes so I did throw in a fake class to pass test cases.
I am also not much of a designer so the website is not very pretty but I kinda just wanted a working
page that in theory could be fleshed out. Any other opinions are welcome!