How can I improve card design?

I’m a Biology teacher also interested in making things look good. I am making a lecture on zoology and decided to set up the key information in cards – so students may take a screenshot and use them for revision.
I did my best, but the design still looks crappy for me – especially the bottom half. Here’s an example (also an actual slide from presentation):
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Ergonomic standards to design UI

I want to build a UI application that visualize/display the analysed tire machine data. The UI application is supposed to be for tablets. However, before I build the application, I am supposed to look for ergonomic standards to display such analyzed machine data. Can anyone please guide with the ergonomic standard to display such analysed … Read more