I'm not a pro, but macro is what I usually do best so I'll try to help you a little...
What camera did you use ?
Does it have manual focus or auto focus?
Did you really have the macro function on in the first 2 pictures?
What you want in macro is to get closer to the subject and get a shallower dept of field..
That means, you only want a small portion to be in focus, and the rest will be blurred.
If you have a camera with auto focus, you have to work a little harder to get it to where you want.
Like in the 2nd and 3rd pictures, the focus is on the leaves, you want it on the flower..
In the first picture, the focus looks fine, but you want the background more blurred, that is where the DoF comes in action.
Get a higher speed or smaller F number to achieve that..
Let me know if I'm not making much sense.. we have pros here who can explain better

And welcome to the photography forum
