© 2019 Jenny Chin

Great Oxygenation Event

An image for a two-page spread depicting the Great Oxygenation Event -- the period in the Earth's development where photosynthetic cyanobacteria began to fill the atmosphere with oxygen.

Created for Impacts, a climate change awareness book aimed at educating the public about the Earth's natural history.

Clients: Dave Jarvis

Audience: Public

Format: Print (magazine), 11 x 17"

Media: Adobe Illustrator

Date: October 2019

Process Work


A rough concept put together by the client.


A rough sketch drawn in photoshop using colour swatches provided by the client.


The final image, drawn in Illustrator with vector brushes, and flattened into a smaller file.