Phil's mading spriteness

[Reaper]

Yeah, biggest problem probably is the face. Where are the two face colours? As bamboori said, it really lacks shading as well as the hair. Might also be that the shape is a bit strange. Faces are, in my eyes, almost the hardest part to get right, so maybe leave a normal character's face aside until you get it right.
The body seems ok to me, maybe a bit too strong saturated, but that's it. If he is completely from scratch, then you get a big + for the proportions.
And - again repeating bamboori - add a little detail like a collar or a belt. Then its gonna be a very nice sprite.