You can purchase and download the Eldritch creatures here:
https://www.turbosquid.com/FullPreview/Index.cfm/ID/1763609
https://www.cgtrader.com/3d-models/character/fantasy/eldritch-abominations-pbr-model-pack
https://blendermarket.com/products/eldritch-abominations-pbr-model-pack
https://www.pond5.com/3d-models/item/157444552-eldritch-abominations-pbr-model-pack