There is a call for the Washington area's best aspiring artists to upload their work at washingtonpost.com/museums to be featured in a new posting, With Real Art DC, regarding canvassing the  local neighborhoods for aspiring artists. Contest Rules. Expiration for entry is September 30, 2010. There are so many entries (1,652 at the time of this posting) that I almost had to stop reviewing but when I got past 1,000, I figured I could get through them all. I'm sure there will be many more after this since it was mentioned in the paper over the weekend. Within a week of the deadline, the public will be able to vote…