very nice cool pic

 The ground was meant to be snow, as was the white stuff in the trees. I get all your points and thank you for commenting.

are the dark grey things shadows? because they aren't shaped anything like the objects casting the shadows. outlines on the dragon's wings need a lot of work. the trees have no volume and I don't know why there are brown patches in the center of them or what the white stuff in them is. what is the ground made of? why is it light grey?

 Thanks Alex, the reason I put the trees there was because I was trying to fit what the game had. Also I thought that the background was very blank. I do agree however that the trees dont look very good, I dont know how to do them well :S

 Thanks vampireslug, I will keep that in mind for future :)

 You should remove the trees they are just useless.

I like it, maybe the dragons shadow could be "tighter".  Still, nice job.

 Thanks, I have been looking through lots of others and have been mind-blown. I am however not sure if I have the patience to do whole scenes. Thanks for commenting :D

 In my new days I found viewing other pixel art, and examining their process thoroughly helped me out. Also looking at refs. goodluck with your art.