Interesting composition. A bit of noise . Lessen the ISO should help a bit. It would give the colors more vibrant colors.Darken the black in levels would make the subjects stand out more. I like the prickly needle coming from the plant.
Shimering spines. I like how bright they are. The pic is quite grainy, detracts from the sharpness of the subject. Composition is busy - my eye isn't sure where to look.
Phenomenal lighting..this is very interesting. I would say perfect but the focus is soft and I think here it would of helped the shot by being sharper. Neat just the same. Nice work.