No. Once you have selected to ‘submit’ your images into a specified category, you will not be able to change it.
Landscape
They Don’t Look Like Me by Niccolò Rastrelli
Ashes of the Arabian’s Pearl by Valentin Valette
The Strata of Time by Seido Kino
The Chronicle of Us by Shunta Kimura
The Chronicle of Us by Shunta Kimura
The Tokyo Toilet Project by Ulana Switucha
Can I change my images after submission?
How do I submit my images?
All images should be submitted online through the Competitions section of the World Photography Organisation website.