Probably my current favourite Pokemon right now, because it's a monster that pretty much destroys and consumes everything, also I love the old Japanese monster films and Hydreigon is based off King Ghidora. It is also based off Yamata no Orochi (8 headed snake demon), Didn't take too long, but I didn't know what to do for a background so I just threw one up and hoped for the best.
I won't be drawing anymore Pokemon stuff for awhile as I want to work on other things.
Comments greatly appreciated.
EDIT: I have changed a few things and used the guidelines from the critique that I have been given. Hopefully, this is a better version. The older version is in my scraps if you still prefer that. =>[link]
Disclaimer: Hydreigon copyrighted to Game Freak/Nintendo