A: This isn't FS or AJ. B: "They don't like it." Did you hear what you just said? Multicolor talking Cartoon ponies that don't exist don't like fanartists to draw them as humans. That is one of the stupidest things I've ever heard.
The coloring is great as always. The body is a little distracting, as it is disproportional to her head. The shoulders are a tad too narrow. The pose of her arms is also looking quite awkward. Her right arm is thinner than the other. Read some anatomy books to help with your grasp on arms. I think you might have a little problem with them because they tend to be really short. Her legs also look a little too thin for her body.
The shading on the wrinkles is great, but the wrinkles themselves look awkward. Try studying the way clothing wraps around the arms and breasts. The hair seems off around her horn. It looks like you just put the horn there without considering how it would push her hair away. Remember the little details; they really count. ^^
I like how you made her look more mature and "sexy." Good job!