Colours to use: https://colour.adobe.com/create
Template from Biorender: https://docs.google.com/presentation/d/1R7p6QvF87P-_laXBchPrHFO_SkrY_5f6vYFSRdd98XI/edit#slide=id.g52dfc31efc_0_121
Here are some sites to find free or low-cost stock images
Make scientific schematics using Biorender.