interesting idea, but the lens flare, the soft focus, and the sunspot in the background are very distracting. Maybe a slightly different composition, with not so much back light, and the lemon in place of the rose bud to the left would have helped.
A few things I notice with this image, but mostly it's personal preference. I'm not a fan of the sunflare, I dont think it really adds anything to the image other than a distraction. The flower on the right is partially cropped out of the frame. There seems to be way too much open green space in the top left corner. The lemon is a little too centered in the image, but the idea of placing a lemon among flowers meets the challenge. Overall the image is fairly soft as well. Some suggestions - dont shoot toward the sun, you'll get much better lighting at around 90 degrees most of the time, and try to remove as many distracting elements from the background as you can.