Boxshot 5

By making some test, I noticed that the final render in Boxshot 5 was less sharp in the image texture in comparison with Boxshot 4 (see example).

Is it possible to correct this. Note that the shape doesn't seem to be a affected, so making a sharpen filter in Photoshop would not be the best since I would have to work with the texture separately.

Thanks

TEST BOXSHOT 5.psd
TEST BOXSHOT 4.psd