This article shows several tests on the new Gemini 2.0 Flash Image model.
The original image
This image (randomly generated by OpenAi Dalle3) is used in our test.

1) Remove objects in the image
remove all the clouds in the sky

2) Adding object to the image
add a small half moon in the sky

3) Change the color theme of the image
change the image to a night scene

4) Follow the same theme to create a new image
follow the same theme and color palette, create an image of a prairie

Reference
https://ai.google.dev/gemini-api/docs/image-generation#gemini-image-editing