Okay, just a few pointers here. Don't get me wrong, your style is REALLY improving, and I've been watching you for a long time, so I should know^^ One thing you could do is add shading. it does take a long time on MS paint, which is the program you use, right? Just go into custom colours, define custom colours, and click on a square. then, to add shadowing, just make it darker from the original shade. For highlights, just make it lighter. As for the line art, like I say, it's really improved! There is no really wrong or right anatomy for a dragon, seeing as everyone has a different vision of them in their own mind. That's probably why I like them so much. XD But the wings could look more like they are attached, especially on the blue one. What I like to do for clouds in paint is use the spray can on the edges to give it more of a realistic appearance. I see you've learned to make the lines for patterning "invisible", so to speak. Use this technique for the shading and highlights. And their mouths could be "attached" to the end of the muzzle for a more realistic affect, if that's what you were aiming for. Maybe add more bend to their legs as well, to make it seem believable. Other than that, the eyes have really improved as well, and I like how you use them to define Apache as a female. All in all, keep up the excellent improvements, and if you ever have an impulsion to try something new in your style, try it, and see how it works out. Like I say, keep it up!!