Step 1: Reduce the image width to the appropriate size for the right side, which is 20 pixels (w_20). Then, apply a true crop of the image's right side by focusing it on the east portion (c_crop,g_east). The image is then cropped down to a 20-pixel-wide sliver.
Step 2: Slice off a portion of the overlay's bottom to start creating the bottom border, setting the height to the same amount of pixels as the right border's width (h_20) and extending the width to be longer than the original to allow for the eventual transformations (w_700) of the distortions. Additionally, ensure that the crop is focused on the southern portion of the image (c_crop,g_south).
Step 3: If the original image was of a person, you could use the g_face parameter and apply it to each image in the URL, including the overlay layers. This will ensure the subject's face is the focal point.