Composition, colors, and lighting are all well done here. There is only one very distractin element and that would be the green leaf in the bottom left corner. Might have pulled that out of thew way before taking the shot.
I can say with some confidence that this is among the better photos I've seen of dead mums. The lighting works well, but the photo seems a little cluttered - especially with the leaf in the lower left corner. The subject flowers (based on the title) seem a little less sharply focused than the dead ones. And since our eye is drawn to the white ones, it is always a bit of a disappointment to see them be fuzzy.
This is technically OK; the subject matter doesn't have lots of visual appeal. The composition is a bit jumbled and busy. Overall, this is a decent image that lacks a "wow" factor.