The preview looked like hair. I think the problem here is the pillow shading, on something with a rough surface like a fossil lighting simply doesn't work that way.
I love the texture and light on the fossil itself, but what with the bg? It's either totally unfinished, or totally inconsistent. I'd love to see it given the same kind of render so that the fossil looks embedded in rock.
Jeremy: lol i didn't know o.o
Manupix: the bg is only a mid-cave abstract,for the rest im happy if you like it :D
MrBeast: yes,but i've put in that way for the reason >10kb =/ for the pillow shading,mhm maybe you have right,but how should i do it?