All images need to go through an image compressor... imagecompressor.com kraken.io
Suggested width is 1600-1800px at 72ppi.
File size should be <300kb.
Hero Image Size Examples
Images for Cards
Suggested width is around 640px. Most images are full width at mobile, so images will be 100% at the mobile breakpoint of 640px.
File size should be <100kb-150kb.
Card and Image Size Examples
Any image above 500kb needs to go through a compressor again.