ooooh I see the beak now. XD More shading in that area would help it immensely. <3 and perhaps a line from the tip of the beak down to where it meets the feathers . *like chickens have*
The beak on the Chocobo needs to be pointier and dangerous. owo (I believe that is what it is. Otherwise it's something to do with Gaia's hack off of Chocobos or Big Bird being tamed...)
Your lines are a big rugged. Try cleaning it up a bit and working a littl e slower maybe?
As for armor, armor is evil to me. I have make it. But yet somehow I made it look godly once. Well, actually it still kind of sucks... but I liked it a lot at the time.
Really, you should also try having the outlines be darker forms of the colors within. Like, with yellow, do a yellow-orange, silver, do a dark gray... etc.