
Hi ...
I've had a shufties at your fairy and it's coming along nicely...
I've had a fiddle... hope you don't mind.
A few things to take note of...

1. the silohette... keep checking it 'reads' - the first image is yours unedited... the second is it's silohettte - the 2nd image I've pulled her head up a touch to try and intorduce some 'negative space' between her right shoulder and chin... - the neck's a tad too long perhaps but this clearly shows how the two silhoettes differ in such asubtle way... the first looks hunched... the second (my edit) looks more proud...
2. your still off on your proportions... the 5th image along hilghts areas that you should look at... her right arm, theupper is shorter than the lower, perhaps there are elements of foreshortening going on, but still it doens't look quite right... Her right leg, (the one betn under her bottom) is seriously out - that lower shin is way too long... and I can't see any evidence there of foreshorteinng as the leg is pretty much side on to the viewer... finally... her left arm/hand... I think I can make out what you're trying to do having had a closer look... but, again... think of the silohette... what I think you were attempting would be masked out by her upper arm (in the background) - what I suggest is opening her arm out more and trying to either flip the hand up... or down (see final image) - I thinkn down wou;d worl better as this has same 'movement' that her right hand has.
3. That last image is me scribbling... I've tried to hilight areas that I would move... as well as indicate main muscle masses on that lower leg. that green circle in the center is her thoracic mass... and notice the hips and the points at either end (important frames of reference when doing nudes)
Don't give up... you're on it for sure... but I think if you tightned up the points mentioned it will improve dramatically...
I'd love to see how this turns out - my favorite is studying the human form. and this piece is right up my street (so to speak)
good luck...