Sorry I type a bit wrong, I mean to say it sounds scary not it's sound scary, another mistake is you don't need any blood on his body, but I type it as you don't any blood on his body.

Great dragon drawing,if you add on a fantasy background this will be perfect.The background should be a dark night,the only thing with light colour in background should be the moon which is light yellow.There can be a castle mostly hiding in shade with a bit out of the shade and clear to see,to make the night feels mystery,and the body of a dead knight,I know it's sound very scary,but it looks good.You don't any blood on his body,but remember to put some under him.His armour has to silver,because the bloods are red.You don't need any stars in the night sky,because they are going to broke the feeling of mystery.A tree with no leaves,nothing on will be helpful if you put it on your background.It's black, all black (not the NZ national rugby team),from the top to the bottom.It's the nearest thing to the readers,so we can only see it from the half of its trunk. And a path build with grey stone is after the tree,let the bare brunches of the tree cover it a bit, and let the moon light shines on it.