Your first dragon looks an awful lot like the one found on this site
http://forestofmirrors.x10.mx/levelup/click/YLj3b
You are clearly drawing or tracing from other people's art work, and this is not only going to turn people off from playing your game, but it could get you sued by the original artists and copyright holders. The worst part about this is when you are called out on this, you are still claiming the art as your own, and that's even worse than the original copying because you are not willing to take correction over it. To top it off, even after claiming to make edits that are your own, your art is still being found to have been copied from other sites, and all this is doing is to discredit yourself even more.
I'm going to assume you are young and don't know much about copyright law and infringement, but take it from those of us who do - you are treading into territory you don't want to tread into. Learn to make your own poses and your own art. You can't use someone else's art, and copy your own line art over it. Too many of us probably play the same games you do, and visit the same art sites you do, and you will be found out. Even worse, a copyright owner of an infringed artwork just might come after you, and then you will wish you had listened to us.
Be smart, stop lying about where the art is coming from, and take our advice with your own best interest in mind. You don't want to get sued, and you don't want a community of pet game players to blacklist your site for art infringement. I know it's hard to make art, but you will thank yourself for pushing yourself to work harder and make your own stuff, and you will be more proud of it.