One Day competition: Guidelines and Criteria

Before entering, make sure you read through our guidelines and the criteria the judges will be using to select the best photos. You will find all the information you need to make sure your photo meets our requirements below.


  • You must be aged 25 or under to take part in the competition
  • You can take part as an individual or as a group
  • Participants (individuals and groups) may submit only one image
  • The photo must have been taken after the opening date of the competition (8 October 2021), please do not use a photo taken before this date
  • Phone filters and editing software can be used
  • Up to thirty images will be selected by the judging panel to form part of an exhibition which will be displayed in a central London location and online in January 2022
  • Winners will be announced on, or close to, 17 January 2022


The judges will choose winners based on a criteria which focusses equally on engagement with the theme of One Day, as well as impact and creativity. Entrants should consider the following criteria before submitting:

  • Central theme of image is relevant to One Day theme and the work of HMDT
  • Strong visual impact
  • Conceptually imaginative
  • Meets required terms and conditions and guidelines