The Sustained Investigation part of the portfolio involves doing these tasks:

uploading 15 images

writing short text entries for each image

entering in the height & width of each image

wrting a statement about the entire body of work which is called Written Evidence

You will need to turn into Canvas an album of images you are considering for your Sustained Investigation.  Explanation here:

Sustained Investigation Conference Album on Google Photos

Here is the webpage on the images, image text entries, and dimensions

Sustained Investigation Images, Image Text & Dimensions Explanation

Here is the webpage on the Written Evidence

Sustained Investigation Written Evidence Explanation