Thanks for the comments. I am still learning and trying to improve the technique.
Nates: Yes, they were cropped in.
So far, I learned that light is very important to get good macro shot. I am still trying to make my DYI lighting setup for macro shots. At this point, I think I need to use a PC cable instead of the cheap radio trigger because I can take the shot at 1/250 with flash on the shoe while I can only use 1/200 with radio trigger. (Maybe because of a slight delay)