Warcraft...a new chapter!

So I have found myself interested in tabletop games recently. More in design than actual play. I've been working on my own version of Warcraft. Mechanics and art is all me. It's taken me a while to get the gameplay to work, but I think it's good to go (after many revisions). Now I am focused on the artwork. Here are the first sketches for the unit cards.

Note: Fantasy Flight Games has already developed and released a Warcraft game, but mine is more unit specific. Besides, it's just for interest sake!