I am setting here saying that I can get this if I put my mind to it. The lighting on the stem and follded back petals is very nice. The bud seems inadequate and the lighting on the glass is not flattering to it. A 5, I do like the lighting in the upper half.
A truly wonderful photo. However, when one considers the challenge criteria, it would seem that "pink" in this instance is not quite the primary colour. I do like it very much, and will come back to review my score.