You have a very nice composition, the black bacground behindthe yellow flowers works well indeed. Your soft off-white curtain is a perfect frame. Problem areas are the very hot window sill and the fact that the flowers seem a bit soft. It's still an excellent entry, congratulations.
Very appealing. I would have liked/chosen to selectively focus on the flower pot rather than on the curtains. This would have made the curtains look even more soft and dreamy and the flower pot, of course, more in focus. Lovely light and composition.
Nice composition and I love the light and texture on the drape. The lighting is really good overall in this image and I like the the shelf being lit too. Only thing that I see that needs improvement is the focus of the flowers. Try changing your aperature to get more of the frame in focus at the same time.