The Blue Plumbago and the Bottlebrush and Bee shots are nice. Your GBH shot is not bad but it sees to be slightly over saturated and a little on the soft side. Also the crop could be different.
I noticed the softness as well. I shot as close as I could approach and then cropped (Canon 55-250). I am still learning Lightroom and my adjustments are difficult for me to finesse.