As you are trying to improve with macro Ray, may i suggest you start with subjects that have a flatter plain of interest so that you are not fighting the shallow depth of field. A bud like this is quite deep and nigh on impossible to get really sharp unless you shut right down to smallest aperture, use a tripod and so forth.
Have fun practicing and let's see what else you come up with. Good subjects include coins, stamps, leaves, petals, feathers, etc
Cheers,
Rob