Not a bad first attempt, while balance looks pretty good. Your image size is too small. For this forum, I use full camera resolution, then use an image editor to take it to 800x600. That normally brings the file size to just under 100k. Don't be afraid to use zoom on your CAM to fill the frame. I typically use between 2.8x and 1.8x depending on the distance from the camera. Keeping the camera back allows more light to get to the coin. Keep trying! You're off to a great start!
Lincoln Cent Lover!