My high school has just started offering a Digital Photography course this year and I've been in it for a little over a month now. I never expected it to be so fun! I've learned what a few of the settings mean now, and have been fairly pleased with a few of my pictures. Over the weekend I was able to convince my teacher to let me check out one of the school's Canon Rebel Xti's. In the last day and a half I've taken about 500 pictures, but I've only really liked a few of them. These are the ones that stood out to me. So do these look at all decent for a beginner? How can I improve them? Also, there was one thing the confused me while I was taking some pictures. The camera would occasionally focus then unfocus while I was holding down the shutter and wouldn't let me take a picture. What would cause that? Thanks for the help!