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Yeah, the streaks of the hair might be a bit thick 
Colours are definitely stronger than in your other sprites and I quite like it, but the colour of his trousers... nah (personal opinion,skip-worthy)
Shading is - concerning the contrast - very, very good. However, his jacket lacks texture. It doesn't have to be much (always depending on the material. But whom am I telling this?), but in my opinion the right arm looks too much like a tube.
For the facial part I agree with LC, both nose and mouth are too light. On the other hand, i don't see why you are trying to hide the eyes. They are looking perfectly fine to me.
Other than that, i can't spot any flaws. Still, something about the anatomy I can't quite put my finger on is bothering me. So I can just guess the reason: His right arm looks like we see him from the side, but the rest of the sprite doesn't really support that impression.
Colours are definitely stronger than in your other sprites and I quite like it, but the colour of his trousers... nah (personal opinion,skip-worthy)
Shading is - concerning the contrast - very, very good. However, his jacket lacks texture. It doesn't have to be much (always depending on the material. But whom am I telling this?), but in my opinion the right arm looks too much like a tube.
For the facial part I agree with LC, both nose and mouth are too light. On the other hand, i don't see why you are trying to hide the eyes. They are looking perfectly fine to me.
Other than that, i can't spot any flaws. Still, something about the anatomy I can't quite put my finger on is bothering me. So I can just guess the reason: His right arm looks like we see him from the side, but the rest of the sprite doesn't really support that impression.