I think it looks great!
I know what you mean about it looking better at a smaller size. That....I'm not sure if it would be called an illusion, or what, exactly....but it gets me every time! I'm always zooming in so that I can see the details, and get them right. So I work very hard, and make it look absolutely perfect at the zoomed in level. But when I zoom back out, it doesn't look right at all!! (And vice versa.) Arrggh!

I have a couple of suggestions to improve further, if you want to display it at this size:
At the bottom, where the ball is in shadow, I think we should see more "fuzz". Because the background is a similar color to the fuzz, it seems to kind of blend into the background, around the sides and on top. So we don't see as much fuzz as there really is. But at the bottom where the shadow is, I think we should see most of the fuzz, because the shadow gives enough contrast to see it.
And also a similar comment about the seams on the ball, although it's hard to say for sure what is needed, without having the file to fool around with on my own. We do see some fuzz overlapping the seams, around the sides of the ball, because there's more shadow there. But in the front of the ball, I think we should see....not necessarily fuzz, because it might not show up due to the highlight. But maybe shadows of fuzz, ie - a darker color of fuzz, if you understand what I mean. Or maybe a little bit of both fuzz and fuzz-shadow....?
Or as far as the fuzz over the seams, it might be that the highlight is a little too bright? Maybe if it were not so bright, we might see more fuzz?? Again, hard to say without hands-on....??
I hope you don't think I'm being picky. I think it's a really nice image, and really only see these 3 small areas where it doesn't seem to work. (I tend to be detail-oriented.) But like I said, display at a smaller size, and these problems probably disappear!