This is a really good Pinkamena. Her expression is nice, I can clearly tell that she's kind of peeved at something. Her pose and the way she's drawn I really like, the subtle little angles and thickness variations in her outlines look absolutely great! Her color is neat, not many people can pull off monochrome this well. Her hair is probably my favorite part, though- the way it falls and drapes, how it connects to her head and tail, I just love seeing any hair done this nicely.
I miss your pony, even if I respect your choice in the matter. You were my main inspiration when I started drawing them (as well as the first Rule34 I remember seeing of them, the Pinkie Pie-Rarity cunnilingus one). Basically just wanted to say thank you for that.