thanks ill be more careful about this sort of thing next time

I agree with Lux_pp about removing some of the colours, specifically the greys. You could probably also make do without the dark green, by shading with the "black" (but that would look a but more cartoony, so consider if that's good or bad for you).

The use of the lighter green for AA is a neat idea but I think at a this scale, it produces more noise than benefit.

Your composition and rendering are pretty strong, but I think you could do with removing a few colors from the palette, since they just read as noise on this small of a sprite.

I love the stance you have there it looks so strong, I find it hard to do good positions like that, that look realistic and not plastic. My avatar is an example of what I have done. Do you have any tips?