Even so, I think you should post his arms so we can crit him as a whole. The face looks garbled. I can't tell what direction he's supposed to be facing, or is he supposed to be looking at the viewer? The feet suggest so. For the coloring, I suggest higher contrast. For small sprites, it's important to learn how to deal without using outlines inside a sprite, as they waste precious space and create an artificial edge. Segmenting by color alone is usually sufficient.
