AROKAI Dragon Head Ideas

Some colored, yet unshaded Headshape-Designs I made for Arokai.
They don't have horns because I laid the highlight on the heads.
Differen't types of horns will come next, but I will do some more head designs, too. So, if you got any ideas for other head shapes, please tell me

From above-left to low-right:
Beak-Head
Arrow-Head
Slender-Head
Rex-Head
Underbite-Head (Inspired from Neondragon)
Spike-Head
Skull-Head (My personal favourite)
Japanese-Head (Haku XD)
Chinese-Head

Please don't ask me any questions about the game. I probably don't know more than you. I just made this designs, that's all.