Good effort for a first try!
I would suggest leaving the unopened flower in the frame to draw attention to the main subject (bee obtaining nectar from flower), as well as to balance the main subject compositionally. Here, the framing and cropping can make all the difference to the photo. Frame it too wide, and the impact of the subject is lost. Frame it too tight, and the photo lacks interest. I would suggest a crop somewhere in between the original photo and night86mare's suggested crop, which is to crop away some of the bottom, and less off the left part of the photo, and to try to place the main points of interest according to the rule of thirds. At the same time, increase the contrast of the pic to bring out the vibrant yellows more.
e.g.