In this design, several problems are evident. Your use of iris adds dollar value without adding visual value due to the iris being so tightly budded.
Also, A weak focal area created by the use of the burgundy carnations....they recede into the design and do not give you the visual value you need in the focal area.
If I were marking this design for AIFD AES evaluation....I would give it a score value of 3 - good basic design showing an understanding of principles and elemnts but no creativity beyond average.