Are the all oil???
The lighting effect you used here was executed well and strongly reminds me of chiaroscuro. Was that in your mind when you made this piece? Regardless, this is excellently done (as always!). It does lend itself toward the wonder of creation. That theme keeps coming back to me today (you're the third, actually), so I guess it's a sign toward something.
Anyway, fantastic work, and good luck on your future works!