I can't see the picture so i'll use the description. Is it two of each or any 2 of those types?
I have to say I like most of your cards, it will make elements much more complicated, like MtG, and people will not get bored so fast.
I have an issue I talk about here: http://elementscommunity.org/forum/index.php/topic,6512.msg76571#msg76571About the art.. I'm guessing you've been using photos you found somewhere and transformed them into vector graphics. Are the photos you've been using royalty-free?
Quanta production based on enemies movement? This card could be even more effective than quantum tower against FG. Even if you have to ditch some elements.