Spark's Sprites

[Gors]

Anatomy is the part you should pay more attention to, because if you don't study it enough, the results will not be favorable. Acknowledging the proportions, such as leg length, hand size, etc. will improve the quality of the sprite.

Kiki's hair is kinda spiky at the bangs, but try representing it as groups of hair instead of trying to reproduce every spike. Trying to do so results in a far messier hair.

Pixelart is also about ignoring small enough details and keeping the important elements to make a character recognizable even in a small resolution.