Not a piece first but a quick crit for Soundlust's piece, will get to posting one though.
Real skill here in folds and detail and design, in those aspects this is ace!
Unfortunately I'm thinking the legs might be throwing the character design and construction/perspective off. They seem, although not as drastic really, like formulaic psuedo-anime/indie sidescroller character legs (examples when I find some, but you know what I mean?), pelvis forward, knees backward, tight pants, tapered legs and small feet, the latter two or three elements which are kinda ruining the heavy mafia-boss character vibe here. Fortunately the legs' execution here shows you understand construction pretty well, but the feet and character bits still apply.
Another problem, the biggest as far as perspective, is that the right foot is off of the ground plane. The other, lesser problem is the way the legs and cane both lean left, causing the weight situation to read as 2d instead of 3d, so one of these elements could be tweaked. And the size of the right hand, length of left arm, etc., also minor problems.
Failed construction is not a major critical problem throughout the piece at all but this is still a good pointer among this rambling/nitpicking: how does x connect to y and where is it in perspective? For example: how does the neck connect to the body? Ask questions and questions. Get to know and understand the pose, its purpose, and the character doing it. Quickly sketching it from different angles, maybe applying perspective guidelines (like this
Damn, gotta edit this post for a piece soon...