Artist Ian Miller (spikey and uber details) and Weird Tales covers

 https://dmrbooks.com/test-blog/2021/11/10/jack-williamson-fifteen-years-gone

https://dmrbooks.com/test-blog/2021/11/11/the-art-of-ian-miller

Wild creepy: https://dmrbooks.com/test-blog/2021/10/19/joseph-clement-coll-a-century-gone