Ah, okay, the lens explains one thing--these aren't truly "macro." They're just reasonably close, pictures of an isolated subject. Not that it really matters to what you're trying to do.
The lighting in the second photo is much better; nice blurred background that is darker than your subject, and the lighting on the subject is not nearly as harsh either.
The biggest issue with the second photo is the focus. Not sure what your aperture was, but you didn't have a very wide DOF here--it looks like your focus was on the stem and that little bud with the teeny red spot, but because of the narrow DOF, the hanging pods in front and behind that stem are OOF (out of focus).
Now, I sometimes have a narrow DOF in macro, or general closeups, on purpose, but if you do that, it's best to have the front object in focus, not a spot somewhere in the middle (in general).
What were your settings on that second shot?