A wonderful shot, using a good sense composition and focus, just as a shot like this requires. The focus isn't completely perfect on the bug (a little in front of it, it seems), but who can blame you with the depth of field that a macro requires, especially not with this camera. You did a rule of thirds here, which works well because the background is varied enough to spot the composition from being bland and obvious. One option to improve would be to make the bug more a part of his surroundings by showing more of the plant in the depth of field. This depth of field is the area in a photograph that looks sharp. In this case, your dof starts halfway on the beatle's shell and stops a few millimetres closer to the camera on the plant. If you were to take the plant from above, it and the bug would be in focus. Read more about dof here: [link]