"I took this picture in 2005 at a racetrack in Swindon. It was part of a project about movement. I chose greyhound racing because I thought it was an unusual sport. I wanted to show the dog moving into the frame, and thought the bars added an interesting perspective."
Click here for Tom's verdict Photograph: Julia Hodgson
"I took this photo on Bondi beach on honeymoon in Sydney in May. It was quiet and there weren't many surfers, but I was determined to brave the chill. I wasn't using a great camera. I was lucky. I took loads and got this silhouette with the surfer and the water behind him. It was perfect."
Click here for Tom's verdict Photograph: Phil Yorke
"I took this at a World Wrestling Entertainment event in Canada. I had a three-megapixel Kodak camera and no zoom, so couldn't take proper pictures of the action in the ring. I noticed the hands of the person in front of me and thought that would add interest."
Click here for Tom's verdict Photograph: Dewi Hughes
"I took this at the Download festival. The Red Bull X-Fighters were doing stunts over large ramps. I managed to get behind a large group of people and poke my lens over their shoulders. It was then a case of waiting for a stunt rider to come into view, and I was lucky enough to press the shutter at the right time."
Click here for Tom's verdict Photograph: John Ashby
"I took this picture at Crickhowell on the river Usk. It was 4.15pm, and the light playing on the water was perfect. It also highlighted the red canoe. I was standing on a bridge using a Fuji Finepix S1Pro."
Click here for Tom's verdict Photograph: Chris Haydon
"I took this picture at the end of my first day mountain biking. I was exhausted, but the other riders decided to do one last jump. I lay on the forest floor to get them silhouetted against the dying light and caught them in the air. The ethereal nature was arrived at by accident."
Click here for Tom's verdict Photograph: Kierson Wise