Models have various level of familiarity with some concepts. This one might be difficult because models are trained to avoid showing three-armed or six-fingered humans, and it might be more difficult to deviate from the norm. An angel with two pairs of wings is often a struggle.
Here's NB result:
View attachment 429515
Totally ignoring the "with two pairs of wings" part of the "an angel with two pairs of wings" prompt...
(Some models do know mariliths without prompting details, but none of the local ones)