Blood dragon from Skyrim. This guy took me about 2 hours to sketch, and about 1 hour to color.
The sketch in the up right corner is not really a blood dragon, seems like his head is too flat and long... :/

Blood dragons!
The first time I saw them I was like "Ohh how cute! *.*"
Now. I met lots of blood dragons. And everytime I see one I'm like "Omfg no! You bastard!"
Blood dragons are evil.

However. I tried to sketch them and give a little color because I really love their design, much different from other Skyrim dragons. Maybe it's not the perfect blood dragon, but I quite like this ^^
I used a lot of references taken from my own screenshots and some Internet images.

Blood dragons © Bethesda
Art © me
Feel free to use it for your own sketches.