Thanks for a supportive comment! I improved the stuff you notticed and edited colours. The darker outline is esential to shape the interior structure of the helmet.

I just knew from the preview this was gonna be from Puzan
strong hues are always a welcoming sight
the dithering is really well it doesn't look all that noisy when viewed at 100 % which isn't always the case with a fully dithered piece
the shading on the top part feels a bit to cel-shaded and flat
but there's nothing inherently wrong with that and also
there are 6 colors present you can see this if you zoom in close to the outline this type of thing happens quite often though
try using the PJ image specs tool after a submission to help
confirm the color count is as it should be