The PostBeyond platform is set to automatically take the photo you use on Facebook as your profile picture once you have linked your account. If you have not linked your Facebook account to the platform, PostBeyond uses your profile photo from Twitter.
If you would like to change your profile photo entirely you can follow these steps:
Step 1. Select "My Settings"
Step 2. Select "Upload your profile picture"
Step 3. Upload a photo from your personal files or drag an image into the space provided
Step 4. Scroll to the bottom of the page and select "Save"