i can't see the pic, what's the link?

wow great find but there's no sign of QUan in this arena. I see shinook in stone but the amulet is to control the army it originally belonged to the DK. But thats why its there the DK has possesion of the amulet.

I cant make out shinnok in the stone. Maybe use MS Paint and draw an outline around where you see it.

I don't think that's Shinnok on the wall, I think those are horns, even though they lookjs ;like Shinnok's hat.
Plus, Since shinnok got the medallion AFTER the DK,I doubt he would be in the DK's cave.. UNLESS!!! There is an important story twist where te DK is aided somehow by Shinnok...

Maybe the DK worships the Elder God Shinnok? And maybe when Shinnok invaded the Elder Gods eons ago, the DK was with him?

Cuz that person on the walls looks very much like Shinnok from MKM.