This is Amazing Stories for December 1956, cover by Edward Valigursky. The ISFDB entry for this issue is here. I found this version of the cover at Pulp Covers. You can download and read the issue at the Internet Archive.
This is Amazing Stories for November 1958, cover by Edward Valigursky. The ISFDB entry for this issue is here. I found this version of the cover at Pulp Covers, where the curator comments “I have to say, she looks less terrified than I would be in that situation.” You can download and read this issue at the Internet Archive.
This is Amazing Stories for March 1957, cover by Edward Valigursky. The ISFDB entry for this issue is here. Amazingly, although he’s not credited on the cover, this issue appears to contain three stories by Harlan Ellison, including the cover story. I found this version of the cover at Pulp Covers. You can download and read the entire issue at the Internet Archive.
This is Amazing Stories for November 1956, cover by Edward Valigursky. The ISFDB entry for this issue is here. I found this version of the cover at this bondage archive. You can download and read this issue at the Internet Archive.
This is Amazing Stories for April 1957, cover by Edward Valigursky. There is an ISFDB entry for this issue here. I found this copy of the cover in this bondage index.