Very nicely done... I especially love the subdued lighting. The composition, or perhaps the floral arrangement leaves the shot feeling a bit out of balance, however. 8
I like the lighting on the lower daisy, and the blue is nicely contrasted against the white. I'd like to see how this photo looks with a colored backdrop, so that the petals of the daisies stand more against the background. Maybe a rich red backdrop, with white and yellow daisies and a light blue vase!
I like most of the lighting in your photo. The shadow on the left and the light passing through the blue vase make for interesting details. The lighting on the upper two flowers do not allow enough details to come through almost as if they were out of focus.
Even though the lighting is a little dark, I like it. However, I think you should have cropped the bottom at the neck of the vase. Seeing the joint between the backgrounds is very distracting.