The natural colour progression of a henna stain:
24 hours after paste removal, and with the addition of glitter and gems
The stain darkened still more after that, and by 72 hours after paste removal had lost some of it red-orange tones and turned dark, coffee brown.
Here’s another one:
(this design is by NJ’s Unique Henna Art)
The paste was sealed, wrapped and left on over night. The little bit of fluff you can see on the left is the toilet paper sticking to the henna still. The colour immediately after removing the paste and then 24 hours later it had darkened significantly.