x3 illustrated scenes in same style for slides

I need 3 different cover slide illustrations.
I have attached a template, only use the whitespace for illustrations.
Each slide to have a different background colour.
Each slide to be in the same illustration style.

The 3 illustrations should be based on the following themes:

1. Climate change is the greatest threat facing humanity today.
2. All people should have the right to own guns.
3. Homeschooling is better than traditional schooling.

I would like to keep the style pretty simple, some ideas below…

https://dribbble.com/shots/14730294-Abbora-web-illustration
https://dribbble.com/shots/14097324-illustrations-for-the-Everydayspeech-project
https://dribbble.com/shots/15104100-Sun-and-Moon