Masterclass:

Challenge series hosted by Alvatrus. Challenges start on Tuesdays.
The challenges in this series is (somewhat) geared towards the more experienced photographers here. They can show their prowess by submitting an image that illustrates the chosen theme of the challenge. In the remarks area, the submitter must provide at least the following: What makes the image eligible for submission and how that effect was created. Appeal to voters: The scoring of an entry should be based on the overall image, and how the author's remarks helped you to understand the subject / effect discussed.
Finished (6 challenges)
Entries: 13
Winners announced: 19th October, 2010 GMT
Winner: Bob as Jasper Johns
One of the true masters of portrait photography is Yousuf Karsh. He has photographed about anyone that shaped the 20th century. This challenge is dedicated to him. Go to http://karsh.org/ click on "the work", then "portraits" and enjoy a sample of his work. In this challenge you'll recreate one of these works. In the title of your entry you must state which portrait you picked for your...
Entries: 51
Winners announced: 17th August, 2010 GMT
Winner: Drangonfly
Failure can be a great teacher. To learn from our mistakes we must take ourselves on and ruthlessly critique the poorer shots, to avoid them in future. In this challenge, show us an image in which something went wrong and you were left with a throw-away. Tell us what went wrong, what was the human mistake. Your mistake. Blaming the camera, the subject, the weather, etc. won't do. Include the...
Entries: 100
Winners announced: 22nd June, 2010 GMT
Winner: Timing is everything…
Show us an image taken with flash. As always in this series, add a description about how the flash was utilised to create the photographic effect. Talk us through about the type of shot you wanted, and how you achieved this.
Entries: 100
Winners announced: 1st June, 2010 GMT
Winner: Steaming Out Of The Past
Show us your prowess in post processing. - It can be a subte effect, of an all-out image altering exercise! As with all the challenges in this series, in the description you need to explain what effect you wanted to achieve, and how you achieved this. Show us some creative ways to use post-processing.
Entries: 100
Winners announced: 18th May, 2010 GMT
Winner: Path
This challenge is to comment on your submitted photo in terms of composition. Tell us why you think it has strong compositional elements, like lines, curves, placement of subject, etc. Tell us what compositional rules you used, or why you broke them.
Entries: 100
Winners announced: 4th May, 2010 GMT
Winner: Mother and Child
The challenges in this series is geared towards the more experienced photographer. They can show their prowess by submitting an image that illustrates the chosen theme of this challenge. In the description area, it is required that the submitter explains the techniques used to come to the final image. VOTING: Please give high scores for the best images with the best technique description! ...