Hello Rui_Santos . Very beautiful photo. How small they are?
In my opinion, I would say that you could've add some exposure to the photo, as it's slightly dark, unless that was your intention to fit with background.
I had the same thoughts as I saw the picture. A bit more exposure would be nice.
But apart from that the picture looks really beautiful. Especially because the flowers are so well isolated from the black background and the blossoms looks so awesome.