Good: I really like the composition!
Bad: The focus seems off -- the bug is a bit blurred, and it doesn't look like motion blur. However, macro shots are notoriously difficult to get in perfect focus, so I woludn't worry.
Pretty good starter shot to be honest. Macro is fun and can be REALLY frustrating to say the least when it comes to getting focus just right. You really did do a pretty good job though all things considered.
Are you using a tripod? It helps with the focus problem. The problem with hand-held macro shots is that even the act of breathing can change your focal distance enough to soften the shot. I would also suggest you engage mirror lock-up if your camera has it to prevent vibrations when the shot is taken. You can also set your timer or use a remote shutter release to keep from moving the camera. Just a few thoughts.