Going off project for a moment, it's a life-long interest to me in what inspired Tolkien. He was so original and so influential to everything that's followed, it's great to find the sources. He gives clues of course, but all of them never quite reflect what he turned them into.
Anyway, I came across this early 20th C artist the other day, Sidney Sime, and his book cover illustrations were very similar to Tolkien's sketches. So I wondered if he was an inspiration to a young JRRT, and then I found this!
If that is not Morgoth and Ungoliant, I don't know what is.