Autumn Leaves

Well, first I want to tell you, that I'm not the great photographer. I do some stock fotos for my own proposes, but I have a very old camera and I'm not so good at it.
But I can tell you something about post process and composition.
I really like the colors and the idea of it. This colorfull balls are very nice.
Also I like the leaves in combination. I think the balls should be the eye-catcher of the picture. The problem is, that the color of the leaves is a bit too similar to the color of the balls. And they get a bit lost between the leaves. So I would play a bit with the Levels and with Hue/Saturation. First I would set the staturation of the balls a bit higher and low the saturation of the leaves. Also I would try to highlight the different colors of the balls like the violett and green balls.
After that I would play a bit with blur and sharpen. It is already done at the sides. But I would use Gaussian Blur and only paint it with a Mask at the leaves (only a little bit) and use Sharpen filter and paint it with a Mask at the balls.
The next thing is, that the picture selection is a bit too undefined. I would cut some of the right parts and so getting the balls more in the center. Also if you do a vignett at the end, it could be very nice.