Another way to further customize Srijith's useful RSS feed is to use Yahoo Pipes. For example, I created a pipe which starts with Srijiths feed of my gallery, and then filter it only for one gallery "black_and_whites"
The final feed is at http://pipes.yahoo.com/pipes/7naHwr_42x ... render=rss
The pipe is at http://pipes.yahoo.com/pipes/7naHwr_42xGa8NN0JphxuA/ for those who want to see how easy it is to do this.
regds
arjun