Photographer Amol Jadhav and art director/retoucher Pranav Bhide recently created something awesome for World For All Animal Care And Adoptions in Mumbai. Using creative lighting and framing, they created a set of optical illusion portraits that each contain two images in one.

The ads are part of a campaign promoting pet adoption, with the tagline: “There’s always room for more. Adopt.”

Jadhav and Bhide—working for McCann Worldgroup India, Mumbai—created a brilliant interpretation of that tagline by arranging their subjects to create an animal shape in the negative space between them. Then, using a very bright backlight and just enough fill from the front, they were able to capture the people and the animal shape in one image (after a bit of post-processing to clean things up, no doubt).

Here are the final three ads, which are quickly rising to the top of Behance‘s Most Appreciated list:

The message and images were used to promote a World For All Adoption in Mumbai, and by all accounts the campaign worked very well. The event saw a 150% increase in foot traffic, and World For All was able to adopt out 42 previously-homeless animals in a single day.