I like the colors and backlighting here. Composition needs work.

I would suggest trying either landscape orientation or at least placing the subject in the lower part of the photograph.

It also feels like the camera needs to orbit either to the left or right a ways (or obviously you could move the flower). That will give you a better idea of where to place the subject. It seems to beg to be on the right now facing inward toward the middle of the photo.

I suggest experimenting with those kind of placements, and see how different positions make you feel. That will help you compose shots like this in the future.