You did mention that swapping between mage and dragon form was gonna be awkward, but I found the basic controls pretty awkward as well.
You want to know how I'd have done it, I'd have put crouch on the down arrow and jump on the up arrow. Not 100% sure where to put everything else, but the Z/X/C keys seem like a good choice.
I did enjoy what little I could experience - I ended up giving up during the tutorial level after my little finger began hurting like hell.