Hey all, I am somewhat late to the party.
Here are a few comments:

Do we really need those horizontal lines ? The different row seem spaced enough that we understand it is a section, and the lines seem a bit too much.

The margin of the different row are not consistent with the rest of the page, maybe adding a bit more margin makes it a bit more spaced ?

I am a bit confused by the mixing both flat style and shadows. The get started button and picture are not elevated (no shadows) but the cards are. I don't know where you want to bring the attention, but my eye prefers the shadows over the get started/picture. I would suggest to remove the shadows, or add more shadows, but maybe not mix the styles ?
From the accessibility point of view, I am really not an expert, but shouldn't the button that trigger a navigation change the style when hovering ? In addition the cards on the bottom of the front page are marked as clickable, but only the little button is clickable, which is confusing when clicking on the card but no action is performed.
In addition the cards on the top of the front page are really similar to the cards on the bottom, but the bottom cards are clickable, while the top cards aren't.
Hope this helps