Samanthie,
Don't worry, you'll get it...:) Some poses are funny, I think it's somewhat psychological...if we don't really like certain poses, they're harder to resolve. This is a rather funny pose, as the arms are tilted in a somewhat awkward way...I think they key to figuring out their shape and position is to look at the negative space. Are you purposely working with the image flipped horizontally? Perhaps it might also help to work on it upside down for a bit? Just a suggestion. :)
I think the torso is looking really good ~ the thing that I notice is that the head is a bit large for the torso as it is…I think there’s something with the thickness of the neck and the area beneath the chin that is bothering me…I think it just requires thinning and a bit of sculpting/refining to make what you already have work. 
EDIT: I think that a minor problem with the face is the forehead…it juts out a bit too much and is a bit squarish, giving her something of a vulcan look. I would just scale this back a bit and refine the profile to your satisfaction. 
Could the legs be a bit longer and thinner, do you think? The model is rather tall, and in this piece, she is looking like someone of a shorter stature. I think if you elongated her features, she would read a bit more proportionally.
Finally, I think there is too much consistency in the highlighting of the figure…she has gotten quite light quickly and all over the place, which means that she is flattening out a bit…if the majority of the figure is a bit darker in value, with only key areas with a high highlight, then I think the figure would read as more dimensional and believable. 
You’re totally doing fine, and sometimes it just requires stepping back and leaving the image alone for awhile, and then coming back to it with fresh eyes. You’re doing great, and I look forward to seeing your update! 
Cheers, :)
~Rebeccak
…although looking forward to painting zhuzhu in the next workshop.

