I got a Canon Powershot S3 P&S this week with the hopes of learning photography. I played around with the camera for a bit, and took some pictures from outside my dorm window. What do you think? These are the first pictures I've taken with the camera. What can I do to improve them? http://www.flickr.com/photos/17423713@N03/sets/72157602853252082/ I want to get good sky photos. What are some things I could do to improve the sky photographs?