Difference between "KC Co Ltd" and "KC2000" mugs ?

Hi,

I've been browsing through Ooga mooga to identify some of the cheaper mugs I have.
I have 4 mugs which are marked "KC2000 Hawaii" on the bottom, I think I got them from a tourist store in Santa Cruz.
On ooga mooga I found 3 of them from manufacturer "KC Co Ltd", but those look much better and more detailed than mine.

Is that a cheap copy or is it from the same manufacturer ?

Here are the 3:

Temple Tiki:
http://www.ooga-mooga.com/cgi-bin/all/mug.cgi?mode=view&mug_id=1617

Winner Tiki:
http://www.ooga-mooga.com/cgi-bin/all/mug.cgi?mode=view&mug_id=1616

Happy Tiki:
http://www.ooga-mooga.com/cgi-bin/all/mug.cgi?mode=view&mug_id=844

It's too dark now, I can take some pictures of mine tomorrow.