Always highlight your best pricing plan and make it pop out.
In that way, you help users identify the most used plan and you promote your top offer. It's a win-win situation.
To highlight the plan, use more than one design ways, eg. color, size, elevation (aka shadow)!
Avoid Fullwidth Paragraphs
Long lines can bore users and create readability problems. Fix it by limiting the line's width between 500px and 700px.
Make Cards Look Clickable
In many cases, cards fail to indicate that they're clickable. Designers omit CTA buttons and only count on the user's experience or/and, hover effects.
Make Inputs Self-Explanatory
Visual hierarchy is important in design because it boosts the user experience and leads the user attention