Hey, great character, seems kind of amiable, pixel potraits are always great.
I could offer some criticism: It seems to me that the shading could be more defined, I mean for example the shading on the shoulder armor looks vague, I had a blast doing a quick edit to show what I mean, (I did a quick note on the top right for myself to help imagine the light source)

later
..and I did a more more complete edit showing a shading approach(or lack of

) with the same palette...
