Spacing is the most important one I can see, you need to check it more carefully. spacing inside & between sections are not consistent and quite random without a clear sense.
Alignment issues are everywhere.
Visual hierarchy issues: make sure your typo give a good hierarchy from title to content paragraph.
Some elements are not well placed so it brings the feel of blank.
Don’t overuse animation (lazy load), if users scroll too fast, your pages will look likes it’s not fully loaded,
Contrast is also an issue, some of your text is hard to read.
Pricing table needs some more design effort.
The size of the picture in TEAM section is not suitable with the content.
This is way too far to approval standard, I am so sorry to say this.
Anyway, try harder! 