Mangaxai! too good. I'd suggest doing some anatomy stuff. On the young lady in the pika costume the arms seem a little small. Just try and watch out for that kind of stuff. drawing (even quick sketches) of real people from reference can really help you to get a good grasp of what certain distances should look like. I really do like your art though every new thing I see you are improving!
Gargoyle
Awesome keyblade, when I was younger i used to love drawing swords, weapons, and vehicles. but in my old age I've lost like all of my creativity. Your stuff though is really cool! I think you've done square's keyblade a lot of justice.
My stuffs

I want to have a video up of the process soon. I'll prob end up posting a link here when I'm done uploading and editing.