Follow the steps below to find your creatives on Facebook:
Create a campaign and ad set in your Facebook Ads Manager.
Enter a descriptive name in the ad name text box.
Select a Facebook Page and Instagram account to represent your business. All ads are required to have an associated Facebook Page.
Select an ad format. Choose from a single image or video, carousel or collection.
Choose your media.
Find creative in your “Account Images”.
For Google:
Same for Google, you will find the image you pushed to Google in the Images section when you get to the Ad stage when creating a new campaign. You will see step-by-step instructions along the way.