The only two things that i see that could be made better would be.

1-To put nastrols on the dragon nose

2-The horn on the left seams unaturaly straight compare to the right one that has to more natural estetic curve in it.

Beside thoose two things, nice work =D

Yeah, I ended up shaping it weird, I see what you mean,

I am not a fan of how under the neck is blended together. Also I agree with Zets' comment on the horn.

:3 always a fan of your work though! Keep it up!

the neck is just blocked in shapes with colours

I'll fix that horn then! hehe

Check your lighting for starters, planes facing away from the light source will not receive light, and planes directly facing the light source will receive the strongest and warmest light. A lot of areas don't follow this. Your lighting is far too even too, every bump on the face has the same thickness shadow on it, it just looks lumpy. (not to mention there's a dark outline around every one) Light will get in and bounce around in those crevices too, the ones in direct light shouldn't be so dark. Don't use black to shade, and you have a semblance of warm light cool shadow, but it could be taken a lot further. It would benefit from some color theory beyond that too, and macroscopic bounced light, like how light from the chest would probably bounce into the shadow on the neck. A sparingly used white-blue rimlight might look good too, but that's up to you. It's kind of a cheat-y way to get something to look "realistic", which is why a lot of people love using them.

yeah, Lighting and colour theory are definitely my biggest foes. I've been avoiding it in the past, only to struggle even worse with it now.

I really appreciate the constructive criticism. I'll rework the image, might start over from the sketch again.

There's no shading with black, it's just deep greens and browns but it's probably the lines on the face from the sketch on a layer underneath with the others set to a low oppacity on normal and multiply. In general, I love the sketchy look of a coloured image, but the lines are a bit bold. Should I dim the sketch?

I'll try the rimlight further along the procress, and see what the end results are.

Well, even if its not black I wouldn't get THAT dark, it's just unrealistic unless the subject is like, in a cave or something :P How dark the shadows should be will be defined by what the setting's lighting is.

Okay! I definitely see what you're talking about though.

Thanks again for all the help, It's really appreciated

The lines on everything but the hair could stand to compare to the hair. I imagine you'll clean it up more, but the lines look kinda messy compared to the crisp neatness of the hair.

The stark black shading on the one side of the face seems to be a bit too much. Lighten it up and try to use some dark green. Shade the side of the front of the muzzle/mouth to better reflect the darkness on that side as well. Give it more of a "roundness". Right now the mouth looks kinda flat. I'd also suggest try playing with a bit of darker shading towards the edge of the "lip" on the top as well to give more roundness and depth feel. There's also the lower lip that could use a bit of shading on the bump second from the left (on the right of the leftward tusk).

Behind the leftward tusk, the lower lip area could use a bit of shading "beneath" the top lip to give more depth. Unless the bottom jaw is only visible in front of the tusks, then I'd find a way to better reflect that to seperate the area of the upper jaw to the left of the tusk and the lower jaw between the two tusks.

Shade behind the tusk and a little smidge around it. It doesn't quite look like it's poking out so much as tacked on as an after thought. Maybe redraw the lines a little or add some lines to create a better "bump" look like it's colliding and pushing out of the mouth (assuming that's the intention) rather than just stuck on.

While I can see their point about the horn... what I see is that it needs to be reangled or rounded out a little better. Of course, not everything is symmetrical in life, but it does seem like it could use a little more rounding around the first curve coming from the head (on the horn on the left). Maybe extend it a little towards the hair? I'm not sure.

Along the bridge of the nose on the muzzle, there's the oval-like area split by three bumps? Darken the area to the right of it a bit. It seems like it could be round, so give it a bit of depth.

I really wish I could just do all this for you so you're not scritching your head at what the hell I mean xD I'm not sure I could achieve the effects I'm talking about u_u I'd go nuts on it for hours @_@;

Oh fuck I just realized this was from two years ago. Damn it I gotta pay more attention. u_u;;;;;;;;;;;;;;;

I think this looks rather nice, you've got a great perspective going on in the picture here and lots of fun detail to keep the eye moving. Was it intentional to have the eyes the same dark shade of as the scales? But compared to my skill with Photoshop this looks pretty damn good.

I'm wondering if you're still working on finishing this one up. I would like to see the finished piece.

Hey hey!
The eyes weren't actually painted in at the time! so it's just the background you see.

Haven't worked on much in the past little while, but making some life changes and will hopefully have more time available for art again (:
Thanks for commenting ^^