Great advice, @James Mayr, I agree! @Paul Olsen, interesting concept and nice drawing! I agree with the "self-critique" you made, but don't feel bad for it, just notice what you need to work on and keep studying to improve your technique. You have been moving forward for a while and that's pretty cool! To me, anatomy-wise, the main thing is the construction of the facial features (a little bit the head as a whole, but mainly the features) - perhaps their size got too small in the drawing for the construction of the eyes and facial expression to be handled properly, but I'd say they're a big part of this drawing and do deserve more contrast (perhaps you could consider this drawing a prep work for a bigger piece you might come up with later? Maybe even make the facial features a focal point? Just a few ideas) About the flames, complementing James's comment: keep in mind fire is light, so these shapes will feel more like fire if they're against a dark background, perhaps even serving as the only light source that dramatically lights up this environment and this character. Hope this helps!