I made such a lineart over a year ago, lineart that can be used to do whatever you like.
And I don't like the old one that much anymore so here is the dragon outline from my newer dragon tutorial for you.
You can colour it just for fun or you colour it in the colours of your own character to see how it would look as a dragon or you want to have a dragon character but you don't think that you can draw a dragon then you can use this and colour it how you like. YOU CAN DO WHAT EVER YOU LIKE WITH IT!
BUT you should leave the signature on it please and don't claim that the outline was made by someone else than me. That's all! Be creative and have fun.
And this is for non-commercial stuff ONLY, of course.
----->>>> DOWNLOAD THE TRANSPARENT PNG VERSION OF IT HERE: [link]
You need to do rightclick "Save as" and be sure that you save the file as a .png then, else it will not be transparent!!!
The transparent PNG file is easy to colour in PS and Gimp for example because you can make a layer underneath the lineart for colour and shadings.