NES Samus

[Lexou Duck]

You could use the red as shading for the yellow to make the sprite more readible




Look at these for instance, these are good examples of 8-bit shading (totally not gonna be modest heh)
there's some shading on parts to give AA to the sprite, make things smoother
Otherwise you'd also shade the leg/arm that's further from the player, it gives a better idea of what goes where and adds depth to the sprite