I'll start by saying I love this piece, and love the style. By no means am I an expert on art, I just noticed you asked for critiques and hadn't received any yet. I hope my comments are helpful.
To start, the use of blending is awesome. Very unique and gives a strong sense of personal style. The way the colors overlap of "go outside of" what would be the outline of the leg, hair, or face, softens the piece and adds a ghostly feel. The eyes, hair, suit, and face are all done very well.
The accent of light in the corner, and the glass of cider in the front, add nice highlights to the piece and draw attention legs and face.
Personality, I would have liked to see a little more contrast in her hair-tie. Seems like a missed opportunity. Since it's the same color as her skin, it adds no contrast and blends with everything else. Her neck-tie and cutie mark bring great contrast to the piece and the hair tie is almost too hard to tell if it's there.
There is some perspective which I find odd however, the glass of cider seems almost too bright, is draws too much attention away from the legs, which is fine if meant that way. Also the table is shown as being looked down on, but the bottom glass is flat, where I feel as the bottom of the glass should look round. I also would have liked to see more detail put in to the handle, I love the shape, but it lacks highlights or blending, whereas everything else in the piece is the opposite.
The Table perspective seems odd, the edge of the table looks almost as if it wasn't intended. Here’s a quick example. [link]
The bottom of the front leg ends abruptly, also not sure if intentional, could be the table. Also her flank seems shaped a bit odd but I can't put my finger on why.
Over all, I felt this was a great piece, nothing else like it. It's extremely unique, and the flavor and color are as well. I hope you keep making more unique art just like it.