|Greetings from the Critique Club!
An interesting take on the OrangeII challenge, and I am glad to see you did so well. Technically, in camera you did everything right - low ISO, fast shutter, shallow fstop for your subject matter. But I have to agree that the smudge/smoke? is distracting, as the rest of the bg is so clean. The border, in my opinion, is a little too much - for me anyway, too thick and too distracting. Not to mention that it cuts into that precious amount of space you have to play with.
Artistically, I like the tilt of the sun ornament and feel that it gives a sense of action and playfulness to the shot. The Orange is definitely there, you're on the right track. Just keep on shooting, think about thinning down the borders, and you will definitely improve.
Feel free to PM me with any questions,