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http://guardian-dart.deviantart.com/art/Finished-150704627

http://guardian-dart.deviantart.com/art/Tahren-the-rocker-150704305

http://guardian-dart.deviantart.com/art/Reference-Skye-Aestis-150704112

Now, for the things I do know:

"Finished" - I didn't use too many creases in this one. It is as it is-- something I drew when I was upset at someone. I also know that the left hand/sword are awkward... What else?

"Tahren the Rocker" - His left cheek is... flat. Very flat, actually, and I know that.

"Reference: Skye Aestis" Go ahead and tear this one apart, I know a lot of what I messed up.

"Finished" - The torso and legs seem to lack depth. I'd give him more width on the left. Given the angle, I'd probably take some away from the right. The sword would be less awkward if it was held more naturally, like if it was facing down and not held right in front of the crotch, but more like going in front of the character. The sword is also very small to be called a "sword"... the small hilt and blade lead me to believe it's a knife. The fingers on the right hand kinda look like cheese strings; the pinky could use a more distinct shape and be noticeably shorter than the other fingers. It'd be weird for the index finger not to show on that angle... or is that it between the pinky and ring fingers? I think it's an awkward hand overall. I'd have the pinky and ring fingers bent entirely and have just tossed the cloth thing with the middle finger, index finger, and thumb.

"Tahren, the Rocker" - The flat cheek isn't really a problem; it's common in anime, though they usually make the cheek bone more defined. The real problem is that the chin is glued to the neck. That would only happen if you're obese or if you're pushing your head back towards your neck. You should try to have the chin sorta centered between the eyes rather than having it in line with the closer eye. The head seems deflated at the top-left. I'd say the neck seems too thick. Also, the face's outline should get more sharply vertical when it's around in line with the nose. The eyes should be at the vertical center of the head.

"Reference: Skye Aestis" - Same chin problem, though the head shape is better. The ear is too small. I draw the ear from the nose to the eye. Cuter anime styles tend to have it smaller than that, but they usually have the base of the ear around the nose level rather than having the top in line with the eye. In any case, your ears need more width.