Osborne's later abstract paintings present a culmination of ideas—distilling her study of luminosity, the landscape, and light.
[2] After graduation Osborne was awarded a Fulbright Scholarship and traveled to Paris to study art for a year.
In 2008, she was honored with a career survey exhibition at the museum of the Pennsylvania Academy of Fine Arts organized by curator Robert Cozzolino, bringing together works from all periods of her career and accompanied by a major monograph publication.
[7] In 2013, Osborne received the Distinguished Alumni Award from the Pennsylvania Academy of Fine Arts.
[20] In 1968, she received a prestigious Rosenthal Award from the National Institute of Arts and Letters and in 1964 was a Fulbright Scholar in Paris, France.