never did get around to fixing it. oldest i have, i think there is an apple i did before this, but my laptop got thirsty so my wife gave it a glass of coke.  as it turns out it wasn't so thirsty.

hip size is good.  you have a fairly balanced hue to the skin at the moment, you might want to take the lighting into consideration when you make a choice (indoor/artificial lighting vs warm sunlight).  i think if you left the base skin hue as it is it would not do much harm. 
as for the purple fading, i tend to merge shadow ramps fairly freely when conserving colours, feeling it has less importance than the mid - midlow hues.  keep in mind that peoples eyes are good at seeing what they think they should be seeing which can be used to your advantage.  perception of hue can vary depending on adjacent hues and overall lighting application. 
the hair is slightly confusing at this stage, comes across more as blobs than groups of strands.  i would suggest not hiding the face behind the hair at this stage - its a similar method to putting hands behind the back of a character because they are hard to draw. 
i think one of the problems with her stance is that the S-shape of the body should be reversed - push that ass out!  also, look to helms edit for the boobychange.  natural breasts do not point forward, but will almost have a 90 degree angle between the direction the nipples point (barring any clothing which squeezes them together).

helm, great critique.

In regards to her thighs, it was simply stylistic, I'm not thinking in terms of kos, or other spriters. I am focused on what I, the artist, wants to do.

don't hide shite behind style.  even stylistic choices can be poor choices (and is a common mistake for many artists here).

My onlyconcern is that you are digging a bit too deep. when i pixel something for a game, or other publication, it is then that i should consider her musculature and specialization. When pixeling for leisure I believe that I have right to do things my way.

C&C appreciated

rethink what that means.

or is critique restricted to pointing out flaws in work?

instant:  instead of making excuses and the like, which i see all too often here, you should be honored that someone has gone to such lengths to help you improve.  asspatting won't improve your skills, it will improve your ego. 
the fact that helm considered your work in such detail was because it showed potential, and was half-decent to begin with - take pride in that.

this is the best c&c I can give you as an artist at this stage. its not personal, i'm not attacking you or your skills.  part of the process here is learning to accept criticism for what it is, a helping hand offered by someone who really wants to help.  The hand may be calloused or it may be smooth but it still remains a helping hand.

your piece is looking really good.  as you have used the highlight on all parts in a similar fashion it looks as though everything is covered with a light coating of baby oil.  try changing the highlight style on parts to change the implied texture.  by dulling the highlight and spreading it slightly you can portray a less reflective material (like skin or suede).
in fact, i believe that highlights are one of the best if not THE best way of communicating material type in pixel art.
keep working on this piece, it is original and shows promise.

lief

quick edit. reduced dithering and adjusted lighting.  small changes to most parts - avoided his left arm, that shit is funky.  You need to amputate at the elbow and redraw.

Thats a rip of a Da Vinci painting!!

jk.  good to see an effort.  i don't know if you are going to do any alterations on the image now, but for a start I would get rid of the edge-line on the nose.