Sorry to hear this story Karen - unfortunately there are far too many unscrupulous people out there. Glad you found out in time. We're all rooting for you, of course, and I'm sure everyone would be doing what they could if they spotted a rip-off deck in their part of the world - but hopefully it won't come to that.
I followed Firemaiden's example and was about to draw a card for you but three flipped over together - which doesn't happen often. They were: The Magician, 5 Swords and 6 Wands, which I decided to take as past, present and future. I see the Magician as you and Alex - specifically speaking of your talents and mastery of your work. It is a very "open" figure in this deck - but of course very powerful and in control - something you're hopefully taking back. The keyword for the 5 Swords is "defeat" and it's a very stormy looking card, with the Swords all plunged into the ground as if to viciously stab someone in the heart: I'm sure it reflects what you're feeling at the moment. By contrast, the 6 Wands is full of light and promise, with the Wands moving upwards. I always see a protective figure in this card - whether it's your "adviser" or a spirit guide (or both) I don't know, but I do think you're well looked after. I also get the feeling that one way to "victory" is to shed as much light on this as you can - not necessarily by telling anybody how it was done (I fully understand your caution there) but using the information for your own purposes to ensure it can't happen again.
One last thought - I'm sure if you ever find out precisely who did this you'll find - as in Skytwig's case - their artwork and imagination are seriously inferior to your own (OK, maybe they have a way with computers - but that's not really in the same league): after all, if they could produce something as compelling they'd be out there doing it, not pinching someone else's ideas!