Pros:
Okay, first off, I love the drawing. The messy lines on the armor adds to the feel of his title. The cape has nice detail, it looks quite professional. As for the wings, they are very good. The feathers are aligned in crooked and ways, such as a real bird's wing would. That is very well done. The shading is just phenomenal. It's in all the right places and just fits perfectly; not too dark and not too light. It's just perfect. Dave's hair looks almost exactly like the one in his original sprite. The same bends and curls. I really do like that. And his eyes, his beautiful eyes, they are perfect. The shape, the color, the angle, it's just great.
Cons:
Unfortunately, there are a few cons. The blood on Dave's face is not noticeable (not on my screen at least) and I couldn't tell it was blood at first. With further examination, however, it was obvious your intention. Since I figured out what it was, I'll give you props!! The other wing behind Dave is a bit weird. It looks too short/small and is just in an odd angle. The outline color, however much I adore it, doesn't really match the picture it'self. Maybe add more detail to the fingers too. I mean, show it's the hand. I at first though that his elbow was his hand holding a sword (strange huh? x3). Of course, after looking at the cape, I found out his hand was over to the side. Perhaps show that a bit more?