Select the lookbook option from the theme editor.
Click on Add block. Select Image from Theme Block dropdown.
Image
Set up an image
Product
Select a product to show.
Horizontal position
Determines the horizontal position of point. Can be from 0% to 100%, increasing arithmetically of 1%.
Vertical position
Determines the vertical position of point. Can be from 0% to 100%, increasing arithmetically of 1%.