I think the seams look a little sloppy, doesn’t look like they actually go into the baseball, but what do you think?
Did you follow this tutorial? http://www.blendercookie.com/2010/11/15/creating-a-baseball/
I think the baseball texture is too rough. I think it should be a lot more smooth. For reference http://images.free-extras.com/pics/b/baseball-974.jpg
The seams look like they maybe need to me a brighter red also.
A few tweaks here or there and you will have a nice model.