The Revenge of Mit's Sprites

[Terminal Devastation]

It might help to instead add some more darker shades to a few of the spikes.
I'm aware that that would make the thwomp the only one with an extra white shade, but it has more white than any other character there.
Especially ones that would have a shadow cast on them by the face itself.
Might help convey that the face is just flat and smooth rather than unshaded if the spikes have more depth to them.