Foreground looks nice for a start, even if the lighting could use a bit of work. Background scenery, however, seems oddly pieced together, making for lack of depth that I think has been mentioned in this thread a few times. And I find it hard, once I've got my eye on them (after I've looked at the brightly colored eye-candy in the foreground), to take my eye off. I think I can't resist the subconscious urge to nitpick and ponder over all these little problems you have. Some sort of isometric perspective you've got, I think, but in isometric, distant buildings don't get smaller. Here, a little guide for you. It's probably not that technically sound, as even I'm not all that used to using perspective and it would ruin a lot of aspects of the drawing as they are now:
Other than that, "Gregory"'s pose is pretty odd and rigid. His face seems to look off to his left side, rather than face the dragon, so, you know, that's not very true to the title of this piece. His... left? Foot/boot is visible, but should probably be in shadow. Fire should be more yellow/bright towards the source, and give off some smoke farthest from the source. Here's a picture of a flamethrower in action that someone posted on another thread regarding some adventure game. Should help. Link here.
Dragon's limbs are a mess. Just found that out after focusing my attention off of its head. I really can't discern if those are forelegs or hind legs. If the dragon really could squeeze himself into such a position, it'd be rather uncomfortable, something along the lines of a yoga position for dragons, and he'd have to have a really big head.
EDIT: It might be better, actually, if the perspective lines spread out left to the image rather than from about the dragon's eye.
I don't really constructed anything, just took some colors and put them at the canvas
, although you are right, your feeling can play tricks on you. All things you pointed out helped me much.
And the point about the limbs, I wasn't sure if it's clear to everybody, i wrote it, but you comment showed me that i also had to change this.
Oh and it's OK if you are nitpicking and saying all those little things, I really appreciate that - if i wouldn't like critique I weren't here, so thanks that you took the time to wirte such a helpful critique.
Now I overworked the whole piece, I changed nearly all things, don't worked out more, just improved here and there a lot. the only thing I haven't changed much is the bg. I know there are tons of lighting mistakes now, I'll remove all i recognize till the end
some important points i have changed:
-construction of everything (except bg building(s))
-completely overworked dragon anatomy (maybe will change the serratus anterior, although I'll look how it'll come out with scales)
-completely overworked fire
-removed the forceshield, I am not sure at the momen, maybe I'll play around with that if all the other things are done
-completely overworked Gregory, more active pose, not sure about the morning star holding arm
-corrected the tiles in the foreground, not finished
What I'll do next:
-change the spikes at the neck (make them bigger (don't fit together with the tail spikes)
-add light from the little fires
wait for helpful critique and work on.