The winners gathered for photographers backstage in front of a plain white-backdrop following the 86th annual ceremony.
Nyong'o places her Best Supporting Academy Award on her lap as she sits on a stool with her custom-made Prada gown splayed around her during her romantic portrait.
A typically playful Jennifer Lawrence larks around with Matthew McConaughey after presenting him with his Best Actor Academy Award for Dallas Buyers Club. Lawrence won Best Actress last year for her role in Silver Linings Playbook.
The actor then perches on a stool of his own with his golden statue for a modest post-win portrait.
Cate Blanchett and Nyong'o clink their Oscars together in celebration as they join fellow winners Leto and McConaughey for a photograph.
Leto, Blanchett and McConaughey share their Oscar joy.
Leto poses with former Oscars presenter - and last year's Best Supporting Actress - Anne Hathaway. He then goes in for a kiss with his golden statue.
Blue Jasmine star Cate Blanchett looks ravishing in a nude embellished Armani Prive gown as she poses with her Best Actress Academy Award.
And Gravity director Alfonso Cuarón poses with his two Oscars for Achievement in Film Editing and Achievement in Directing with Angelina Jolie.
12 Years a Slave director Steve McQueen and producers Brad Pitt, Jeremy Kleiner, Dede Gardner and Anthony Katagas pose with their Oscars for Best Motion Picture.
Peter Del Vecho, Jennifer Lee and Chris Buck pose with their Best Animated Feature Film Oscars for Frozen, alongside the award's presenters McConaughey and Kim Novak.
And Bill Murray stands with Gravity's Achievement in Cinematography winner Emmanuel Lubezki backstage.