On another note, Skotti is right. Because she's like, an artist and stuff.
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ok. I'm not even going to go search for my thread right now.
But anyways, I'm just saying, the thing I'm critical about is useless help like "watch people." Studying anatomy books is different, and EXTREMELY helpful (if you devote yourself to it). Trying for divine proportion is different, and helpful (if you can visually grasp it and manually "measure" it). Like, actual, physical tips you can put into practice in your drawings are helpful. "Watch people" is something we do every day, and if proportions are still not right, then other methods are helpful.
And yeah, I agree with what you said are his positive points. I said them myself.
Back to that drawing of Batman, though- like for instance, his left arm (on our right, the one with the detonator) is much longer than his other arm (measure from the top of the shoulder to the elbow, make a mark equidistant vertically from the same point, then do the same from the elbow to the fist- it goes down about a fist's lenght farther than the other arm. That arm is fine, but his right [our left] is just too short). Try to equalize limb length.
Anatomy books and divine proportion help when it comes to leg length in this case. Also keep in mind that an individual's wingspan (finger tip to finger tip when arms are spread out) is roughly equal to his height. When you know your torso is the right length, and you're still having trouble with the legs, you can take your arm's measurements, make marks in a horizontal line with the shoulders, and use that for height (sometimes, making the height greater makes for a more heroic figure-- but then, watch out for arm length!). When I learned little proportion tricks in the human body, it helped my art a LOT. Like, for instance, the wingspan thing; your foot is as long as your forearm; 1:1.618; etc.
Also, again, on this Batman one, the head is a bit too far away from the body- kinda like Mr. Mackey on South Park. Just bring it down a little (which may be frustrating cuz you'll have to draw it again).
Now that all that advice is out-- I still LOVE your style. And I just figured out why. I don't know whether you will take this as a compliment or not, but if someone said this to me, I would...
Your art reminds me of Frank Quitely. Especially your line work. There's a realistic, rugged wrinkle in the Batman especially that brings this out, and its apparent in the Authority piece too. Quitely's figures are a little squat and stocky as well, but yours is a bit too much. I'm sure you can correct it. And again, I love and envy your shading skill.
Well, that's it for me for now. I'm gonna dig up that art link of mine and post it somewhere. EDIT: there, now its in my signature. Give it a look, whydontcha