From the title I thought this was going to look like a chess piece. Guess not
I have no idea what its supposed to be, so I can't comment on the form.
The grey highlight on the red parts needs to go, it looks bad.
The shadows / highlights are inconsistent. This is part of the problem of drawing something that has no real life equivalent.
Seems like there are a lot of unnecessary black outlines inside the shape which make it look messy. Especially on the right half.
Even though your pixeling isn't half-bad, the overall effect looks poor due to the unidentifiable object you created.
