My return to Spriters resource (now VG resource)

[TheMario360]

The red coin doesn't look very saturated to me, likely because of the brightest color. I'd say shift the colors all up one(so that the second lightest becomes the first lightest, third lightest becomes the second lightest, etc) and make a new color for the darkest shade.

All I have to say is that it looks like it came from the virtual boy.