I'd start again with the dragon. I like him but he looks shocked, his feet need work, and the ecig looks a bit suggestive when coupled with his face. I'd either exaggerate the size of the ecig to make it more prominent (it IS the product after all) or not use it at all. You could either do more with the smoke, since the ecig produces none haha, or remove it altogether for the same reason... I'm also a bit dubious about the gradient on the cards, it looks sleek but might interfere with its readability. I like the colours though.