Endangered monkeys

I’ve been working on illustration of rare/threatened species.

Here is their common name and current conservation status.
Top left : L’Hoest’s monkey (VU)
Top right: Bald-headed Uakari (VU)
Middle: De Brazza’s monkey (LC)
Bottom left: Golden-headed lion tamarin (EN)
Bottom right: Golden snub-nosed monkey (EN)
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IUCN Red list status
CR: Critically Endangered
EN: Endangered
VU: Vulnerable
NT: Near threatened
LC: Least Concern