Well, I didn't try them all but I did try the grinch one and I think I have a couple of comments--
1) Your images are 200 resolution and usually you need 300 res or more to get crisp and clear image for bottlecaps. So when you make the next batch, make sure the res is 300 and save them with the lowest compression which saves the image in best quality (at least that's what I do in paint shop pro).
2) The size of the image sheet needs to be 4x6 inches
! Yours is 400x600 pixels which is equivalent to 2x3 inches!
I hope this helps!
They look great otherwise and it's really nice of you to share!