I love this idea, this would help my fellow artists in so many ways. It can help them to hone their skills, having an audience certainly helps, especially if they are giving constructive criticism. Getting their name/face out there, many artists are struggling to find work for themselves, this would be a great way for them to get themselves known etc. There are more reasons, but I'll leave it at that. This isn't as important as solving world hunger, but it is nearly just as simple, in comparison, to solve.
P.S. Maybe, we could use it to help solve world hunger...you never know!