The Aye Aye is a nocturnal lemur (and a fascinating animal, worth reading about), so illumination was red and rather weak. Converting the image to black and white seemed to make the most sense. In retrospect, I might have tried an even higher ISO.

Low light and shooting through (thankfully clean) glass at an angle meant manual focus, something I admit I rarely do these days. That and the lens's maximum aperture produced less than studio results. Still, I'm happy with what I got. Yes, I bumped up shadows and contrast and used sharpening and denoise.

I have placed the original shot in Pending so you can see my starting point. https://pbase.com/image/172775826